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The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a
transcontinental country This is a list of countries with territory that straddles more than one continent, known as transcontinental states or intercontinental states. Contiguous transcontinental countries are states that have one continuous or immediately-adjace ...
that spanned much of
Eurasia Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelag ...
from 1922 to 1991. A flagship
communist state A communist state, also known as a Marxist–Leninist state, is a one-party state that is administered and governed by a communist party guided by Marxism–Leninism. Marxism–Leninism was the Ideology of the Communist Party of the Soviet U ...
, it was nominally a
federal union A federation (also known as a federal state) is a political entity characterized by a union of partially self-governing provinces, states, or other regions under a central federal government (federalism). In a federation, the self-govern ...
of fifteen national republics; in practice, both its government and its economy were highly
centralized Centralisation or centralization (see spelling differences) is the process by which the activities of an organisation, particularly those regarding planning and decision-making, framing strategy and policies become concentrated within a partic ...
until its final years. It was a
one-party state A one-party state, single-party state, one-party system, or single-party system is a type of sovereign state in which only one political party has the right to form the government, usually based on the existing constitution. All other parties ...
governed by the Communist Party of the Soviet Union, with the city of
Moscow Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million ...
serving as its capital as well as that of its largest and most populous republic: the
Russian SFSR The Russian Soviet Federative Socialist Republic, Russian SFSR or RSFSR ( rus, Российская Советская Федеративная Социалистическая Республика, Rossíyskaya Sovétskaya Federatívnaya Soci ...
. Other major cities included
Leningrad Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
(Russian SFSR),
Kiev Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the seventh-most populous city in Europe. Ky ...
(
Ukrainian SSR The Ukrainian Soviet Socialist Republic ( uk, Украї́нська Радя́нська Соціалісти́чна Респу́бліка, ; russian: Украи́нская Сове́тская Социалисти́ческая Респ ...
),
Minsk Minsk ( be, Мінск ; russian: Минск) is the capital and the largest city of Belarus, located on the Svislach (Berezina), Svislach and the now subterranean Nyamiha, Niamiha rivers. As the capital, Minsk has a special administrative stat ...
(
Byelorussian SSR The Byelorussian Soviet Socialist Republic (BSSR, or Byelorussian SSR; be, Беларуская Савецкая Сацыялістычная Рэспубліка, Bielaruskaja Savieckaja Sacyjalistyčnaja Respublika; russian: Белор� ...
),
Tashkent Tashkent (, uz, Toshkent, Тошкент/, ) (from russian: Ташкент), or Toshkent (; ), also historically known as Chach is the capital and largest city of Uzbekistan. It is the most populous city in Central Asia, with a population of ...
(
Uzbek SSR Uzbekistan (, ) is the common English language, English name for the Uzbek Soviet Socialist Republic (Uzbek SSR; uz, Ўзбекистон Совет Социалистик Республикаси, Oʻzbekiston Sovet Sotsialistik Respublikasi, ...
),
Alma-Ata Almaty (; kk, Алматы; ), formerly known as Alma-Ata ( kk, Алма-Ата), is the largest city in Kazakhstan, with a population of about 2 million. It was the capital of Kazakhstan from 1929 to 1936 as an autonomous republic as part of ...
(
Kazakh SSR ; kk, Қазақ Советтік Социалистік Республикасы) *1991: Republic of Kazakhstan (russian: Республика Казахстан; kk, Қазақстан Республикасы) , linking_name = the ...
), and
Novosibirsk Novosibirsk (, also ; rus, Новосиби́рск, p=nəvəsʲɪˈbʲirsk, a=ru-Новосибирск.ogg) is the largest city and administrative centre of Novosibirsk Oblast and Siberian Federal District in Russia. As of the 2021 Census, ...
(Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the
October Revolution The October Revolution,. officially known as the Great October Socialist Revolution. in the Soviet Union, also known as the Bolshevik Revolution, was a revolution in Russia led by the Bolshevik Party of Vladimir Lenin that was a key mome ...
of 1917, when the
Bolsheviks The Bolsheviks (russian: Большевики́, from большинство́ ''bol'shinstvó'', 'majority'),; derived from ''bol'shinstvó'' (большинство́), "majority", literally meaning "one of the majority". also known in English ...
, under the leadership of
Vladimir Lenin Vladimir Ilyich Ulyanov. ( 1870 – 21 January 1924), better known as Vladimir Lenin,. was a Russian revolutionary, politician, and political theorist. He served as the first and founding head of government of Soviet Russia from 1917 to 1 ...
, overthrew the
Russian Provisional Government The Russian Provisional Government ( rus, Временное правительство России, Vremennoye pravitel'stvo Rossii) was a provisional government of the Russian Republic, announced two days before and established immediatel ...
that had earlier replaced the
House of Romanov The House of Romanov (also transcribed Romanoff; rus, Романовы, Románovy, rɐˈmanəvɨ) was the reigning imperial house of Russia from 1613 to 1917. They achieved prominence after the Tsarina, Anastasia Romanova, was married to t ...
of the
Russian Empire The Russian Empire was an empire and the final period of the List of Russian monarchs, Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended th ...
. The Bolshevik coup led to the establishment of the Russian Soviet Republic, the world's first constitutionally guaranteed
socialist state A socialist state, socialist republic, or socialist country, sometimes referred to as a workers' state or workers' republic, is a sovereign state constitutionally dedicated to the establishment of socialism. The term ''communist state'' is ofte ...
. Persisting internal tensions escalated into the
Russian Civil War {{Infobox military conflict , conflict = Russian Civil War , partof = the Russian Revolution and the aftermath of World War I , image = , caption = Clockwise from top left: {{flatlist, *Soldiers ...
. By 1922 the Bolsheviks under
Vladimir Lenin Vladimir Ilyich Ulyanov. ( 1870 – 21 January 1924), better known as Vladimir Lenin,. was a Russian revolutionary, politician, and political theorist. He served as the first and founding head of government of Soviet Russia from 1917 to 1 ...
had emerged victorious, forming the Soviet Union. Following
Lenin's death On 21 January 1924, at 18:50 EET, Vladimir Lenin, leader of the October Revolution and the first leader and founder of the Soviet Union, died in Gorki aged 53 after falling into a coma. The official cause of death was recorded as an incurable ...
in 1924,
Joseph Stalin Joseph Vissarionovich Stalin (born Ioseb Besarionis dze Jughashvili; – 5 March 1953) was a Georgian revolutionary and Soviet political leader who led the Soviet Union from 1924 until his death in 1953. He held power as General Secreta ...
came to power. Stalin inaugurated a period of rapid industrialization and forced collectivization that led to significant economic growth, but also contributed to a famine in 1930–1933 that killed millions. The
labour camp A labor camp (or labour camp, see spelling differences) or work camp is a detention facility where inmates are forced to engage in penal labor as a form of punishment. Labor camps have many common aspects with slavery and with prisons (espec ...
system of the
Gulag The Gulag, an acronym for , , "chief administration of the camps". The original name given to the system of camps controlled by the State Political Directorate, GPU was the Main Administration of Corrective Labor Camps (, )., name=, group= ...
was also expanded in this period. Stalin conducted the
Great Purge The Great Purge or the Great Terror (russian: Большой террор), also known as the Year of '37 (russian: 37-й год, translit=Tridtsat sedmoi god, label=none) and the Yezhovshchina ('period of Yezhov'), was Soviet General Secreta ...
to remove his actual and perceived opponents. After the outbreak of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
, Germany invaded the Soviet Union. The combined Soviet civilian and military casualty count—estimated to be around 27 million people—accounted for the majority of losses of Allied forces. In the
aftermath of World War II The aftermath of World War II was the beginning of a new era started in late 1945 (when World War II ended) for all countries involved, defined by the decline of all colonial empires and simultaneous rise of two superpowers; the Soviet Union (U ...
, the territory taken by the Red Army formed various
Soviet satellite states A satellite state or dependent state is a country that is formally independent in the world, but under heavy political, economic, and military influence or control from another country. The term was coined by analogy to planetary objects orbitin ...
. The beginning of the Cold War saw the
Eastern Bloc The Eastern Bloc, also known as the Communist Bloc and the Soviet Bloc, was the group of socialist states of Central and Eastern Europe, East Asia, Southeast Asia, Africa, and Latin America under the influence of the Soviet Union that existed du ...
of the Soviet Union confront the
Western Bloc The Western Bloc, also known as the Free Bloc, the Capitalist Bloc, the American Bloc, and the NATO Bloc, was a coalition of countries that were officially allied with the United States during the Cold War of 1947–1991. It was spearheaded b ...
of the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
, with the latter grouping becoming largely united in 1949 under
NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...
and the former grouping becoming largely united in 1955 under the
Warsaw Pact The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republi ...
. Following
Stalin's death Joseph Stalin, second leader of the Soviet Union, died on 5 March 1953 at his Kuntsevo Dacha at the age of 74, after suffering a stroke. He was given a state funeral in Moscow on 9 March, with four days of national mourning declared. The day ...
in 1953, a period known as de-Stalinization occurred under the leadership of
Nikita Khrushchev Nikita Sergeyevich Khrushchev (– 11 September 1971) was the First Secretary of the Communist Party of the Soviet Union from 1953 to 1964 and chairman of the country's Council of Ministers from 1958 to 1964. During his rule, Khrushchev ...
. The Soviets took an early lead in the
Space Race The Space Race was a 20th-century competition between two Cold War rivals, the United States and the Soviet Union, to achieve superior spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the ...
with the first artificial satellite, the
first human spaceflight Vostok 1 (russian: link=no, Восток, ''East'' or ''Orient'' 1) was the first spaceflight of the Vostok programme and the first human orbital spaceflight in history. The Vostok 3KA space capsule was launched from Baikonur Cosmodrome on A ...
, and the first probe to land on another planet (
Venus Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never f ...
). In the 1970s, there was a brief ''
détente Détente (, French: "relaxation") is the relaxation of strained relations, especially political ones, through verbal communication. The term, in diplomacy, originates from around 1912, when France and Germany tried unsuccessfully to reduce ...
'' in the Soviet Union's relationship with the United States, but tensions resumed following the
Soviet invasion of Afghanistan The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nation ...
in 1979. In the mid-1980s, the last Soviet leader, Mikhail Gorbachev, sought to reform the country through his policies of ''
glasnost ''Glasnost'' (; russian: link=no, гласность, ) has several general and specific meanings – a policy of maximum openness in the activities of state institutions and freedom of information, the inadmissibility of hushing up problems, ...
'' and '' perestroika''. In 1989, during the closing stages of the Cold War, various countries of the Warsaw Pact overthrew their Marxist–Leninist regimes, which was accompanied by the outbreak of strong
nationalist Nationalism is an idea and movement that holds that the nation should be congruent with the State (polity), state. As a movement, nationalism tends to promote the interests of a particular nation (as in a in-group and out-group, group of peo ...
and
separatist Separatism is the advocacy of cultural, ethnic, tribal, religious, racial, governmental or gender separation from the larger group. As with secession, separatism conventionally refers to full political separation. Groups simply seeking greate ...
movements across the entire Soviet Union. In 1991, Gorbachev initiated a national referendum—boycotted by the Soviet republics of Lithuania,
Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...
,
Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, and t ...
,
Armenia Armenia (), , group=pron officially the Republic of Armenia,, is a landlocked country in the Armenian Highlands of Western Asia.The UNbr>classification of world regions places Armenia in Western Asia; the CIA World Factbook , , and ...
,
Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to t ...
, and
Moldova Moldova ( , ; ), officially the Republic of Moldova ( ro, Republica Moldova), is a landlocked country in Eastern Europe. It is bordered by Romania to the west and Ukraine to the north, east, and south. The unrecognised state of Transnist ...
—that resulted in the majority of participating citizens voting in favour of preserving the country as a renewed federation. In August 1991, hardline members of the Communist Party staged a coup d'état against Gorbachev; the attempt failed, with
Boris Yeltsin Boris Nikolayevich Yeltsin ( rus, Борис Николаевич Ельцин, p=bɐˈrʲis nʲɪkɐˈla(j)ɪvʲɪtɕ ˈjelʲtsɨn, a=Ru-Boris Nikolayevich Yeltsin.ogg; 1 February 1931 – 23 April 2007) was a Soviet and Russian politician wh ...
playing a high-profile role in facing down the unrest, and the Communist Party was subsequently banned. All of the republics emerged from the dissolution of the Soviet Union as fully independent
post-Soviet states The post-Soviet states, also known as the former Soviet Union (FSU), the former Soviet Republics and in Russia as the near abroad (russian: links=no, ближнее зарубежье, blizhneye zarubezhye), are the 15 sovereign states that wer ...
. The Soviet Union produced many significant social and technological achievements and innovations. It had the world's second-largest economy, and the
Soviet Armed Forces The Soviet Armed Forces, the Armed Forces of the Soviet Union and as the Red Army (, Вооружённые Силы Советского Союза), were the armed forces of the Russian SFSR (1917–1922), the Soviet Union (1922–1991), and th ...
comprised the largest standing military in the world. An NPT-designated state, it possessed the largest arsenal of nuclear weapons in the world. It was a founding member of the
United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmonizi ...
as well as one of the five permanent members of the
United Nations Security Council The United Nations Security Council (UNSC) is one of the Organs of the United Nations, six principal organs of the United Nations (UN) and is charged with ensuring international security, international peace and security, recommending the admi ...
. Before the dissolution, the country had maintained its status as one of the world's two superpowers through its hegemony in Eastern Europe, military and economic strengths, aid to
developing countries A developing country is a sovereign state with a lesser developed Industrial sector, industrial base and a lower Human Development Index (HDI) relative to other countries. However, this definition is not universally agreed upon. There is al ...
, and scientific research.


Etymology

The word ''
soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...
'' is derived from the Russian word (russian: link=no, совет), meaning 'council', 'assembly', 'advice', (); pl, rada; be, савет/рада; uz, совет; kk, совет / кеңес (); ka, საბჭოთა (); az, совет, italic=no; lt, taryba; ro, soviet (
Moldovan Cyrillic The Moldovan Cyrillic alphabet is a Cyrillic alphabet designed for the Romanian language spoken in the Soviet Union ( Moldovan) and was in official use from 1924 to 1932 and 1938 to 1989 (and still in use today in the breakaway Moldovan regio ...
: ); lv, padome; ky, совет; tg, шӯравӣ / совет (); hy, խորհուրդ / սովետ (); tk, совет, italic=no; et, nõukogu. ultimately deriving from the proto-Slavic verbal stem of ('to inform'), related to Slavic ('news'), English ''wise'', the root in ''ad-vis-or'' (which came to English through French), or the Dutch ('to know'; compare meaning 'science'). The word ''sovietnik'' means 'councillor'. Some organizations in Russian history were called ''council'' (russian: link=no, совет). In the
Russian Empire The Russian Empire was an empire and the final period of the List of Russian monarchs, Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended th ...
, the
State Council State Council may refer to: Government * State Council of the Republic of Korea, the national cabinet of South Korea, headed by the President * State Council of the People's Republic of China, the national cabinet and chief administrative autho ...
which functioned from 1810 to 1917 was referred to as a Council of Ministers. The Soviets as
workers' council A workers' council or labor council is a form of political and economic organization in which a workplace or municipality is governed by a council made up of workers or their elected delegates. The workers within each council decide on what thei ...
s first appeared during the
Russian revolution of 1905 The Russian Revolution of 1905,. also known as the First Russian Revolution,. occurred on 22 January 1905, and was a wave of mass political and social unrest that spread through vast areas of the Russian Empire. The mass unrest was directed again ...
. Although they were quickly suppressed by the imperial government, the Soviets re-emerged across the country after the
February revolution of 1917 The February Revolution ( rus, Февра́льская револю́ция, r=Fevral'skaya revolyutsiya, p=fʲɪvˈralʲskəjə rʲɪvɐˈlʲutsɨjə), known in Soviet historiography as the February Bourgeois Democratic Revolution and somet ...
, and shared power with the
Russian Provisional Government The Russian Provisional Government ( rus, Временное правительство России, Vremennoye pravitel'stvo Rossii) was a provisional government of the Russian Republic, announced two days before and established immediatel ...
. The Bolsheviks, led by
Vladimir Lenin Vladimir Ilyich Ulyanov. ( 1870 – 21 January 1924), better known as Vladimir Lenin,. was a Russian revolutionary, politician, and political theorist. He served as the first and founding head of government of Soviet Russia from 1917 to 1 ...
, used the slogan "all power to the Soviets" to oppose the Provisional Government, and seized power from it with the October coup of 1917. In January 1918, at the third
All-Russian Congress of Soviets The All-Russian Congress of Soviets evolved from 1917 to become the supreme governing body of the Russian Soviet Federative Socialist Republic from 1918 until 1936, effectively. The 1918 Constitution of the Russian SFSR mandated that Congress sha ...
, Lenin proclaimed the formation of the Russian Socialist Federal Soviet Republic (RSFSR). During the Georgian Affair of 1922, Lenin called for the RSFSR and other national Soviet republics to form a greater union which he initially named as the Union of Soviet Republics of Europe and Asia ( rus, links=no, Союз Советских Республик Европы и Азии, Soyuz Sovetskikh Respublik Evropy i Azii).
Joseph Stalin Joseph Vissarionovich Stalin (born Ioseb Besarionis dze Jughashvili; – 5 March 1953) was a Georgian revolutionary and Soviet political leader who led the Soviet Union from 1924 until his death in 1953. He held power as General Secreta ...
initially resisted Lenin's proposal but ultimately accepted it, although with Lenin's agreement changed the name to the Union of Soviet Socialist Republics (USSR), although all the republics began as ''socialist soviet'' and did not change to the other order until
1936 Events January–February * January 20 – George V of the United Kingdom and the British Dominions and Emperor of India, dies at his Sandringham Estate. The Prince of Wales succeeds to the throne of the United Kingdom as King E ...
. In addition, in the national languages of several republics, the word ''council'' or ''conciliar'' in the respective language was only quite late changed to an adaptation of the Russian ''soviet'' and never in others, e.g.
Ukrainian SSR The Ukrainian Soviet Socialist Republic ( uk, Украї́нська Радя́нська Соціалісти́чна Респу́бліка, ; russian: Украи́нская Сове́тская Социалисти́ческая Респ ...
. (in the Latin alphabet: ''SSSR'') is the abbreviation of the Russian language cognate of USSR, as written in
Cyrillic letters , bg, кирилица , mk, кирилица , russian: кириллица , sr, ћирилица, uk, кирилиця , fam1 = Egyptian hieroglyphs , fam2 = Proto-Sinaitic , fam3 = Phoenician , fam4 = Gr ...
. The Soviets used this abbreviation so frequently that audiences worldwide became familiar with its meaning. After this, the most common Russian initialization is (transliteration: ) which, after compensating for grammatical differences, essentially translates to ''Union of SSRs'' in English. In addition, the Russian short form name (transliteration: , which literally means ''Soviet Union'') is also commonly used, but only in its unabbreviated form. Since the start of the
Great Patriotic War The Eastern Front of World War II was a Theater (warfare), theatre of conflict between the European Axis powers against the Soviet Union (USSR), Polish Armed Forces in the East, Poland and other Allies of World War II, Allies, which encom ...
at the latest, abbreviating the Russian name of the Soviet Union as (in the same way as, for example, ''
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
'' is abbreviated into ''US'') has been complete taboo, the reason being that as a Russian Cyrillic abbreviation is instead associated with the infamous of
Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
, just as ''SS'' is in English. One apparent exception was the Russian abbreviation the Communist Party of the Soviet Union, (''KPSS''). In English language media, the state was referred to as the Soviet Union or the USSR. In other European languages, the locally translated short forms and abbreviations are usually used such as and in French, or and in German. In the English-speaking world, the Soviet Union was also informally called Russia and its citizens Russians, although that was technically incorrect since Russia was only one of the republics of the USSR. Such misapplications of the linguistic equivalents to the term ''Russia'' and its derivatives were frequent in other languages as well.


Geography

The Soviet Union covered an area of over , and was the world's largest country,Television documentary from CC&C Ideacom Production, "Apocalypse Never-Ending War 1918–1926", part 2, aired at Danish DR K on 22 October 2018. a status that is retained by its successor state, Russia. It covered a sixth of Earth's land surface, and its size was comparable to the continent of North America. Its western part in Europe accounted for a quarter of the country's area and was the cultural and economic center. The eastern part in Asia extended to the Pacific Ocean to the east and
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bord ...
to the south, and, except some areas in Central Asia, was much less populous. It spanned over east to west across eleven
time zone A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because i ...
s, and over north to south. It had five climate zones:
tundra In physical geography, tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term ''tundra'' comes through Russian (') from the Kildin Sámi word (') meaning "uplands", "treeless mo ...
,
taiga Taiga (; rus, тайга́, p=tɐjˈɡa; relates to Mongolic and Turkic languages), generally referred to in North America as a boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces ...
,
steppe In physical geography, a steppe () is an ecoregion characterized by grassland plains without trees apart from those near rivers and lakes. Steppe biomes may include: * the montane grasslands and shrublands biome * the temperate grasslan ...
s, desert and mountains. The Soviet Union, similarly to Russia, had the world's longest border, measuring over , or circumferences of Earth. Two-thirds of it was a
coast The coast, also known as the coastline or seashore, is defined as the area where land meets the ocean, or as a line that forms the boundary between the land and the coastline. The Earth has around of coastline. Coasts are important zones in n ...
line. The country bordered (from 1945 to 1991):
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
,
Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bo ...
, the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and fr ...
,
Poland Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 mill ...
,
Czechoslovakia , rue, Чеськословеньско, , yi, טשעכאסלאוואקיי, , common_name = Czechoslovakia , life_span = 1918–19391945–1992 , p1 = Austria-Hungary , image_p1 ...
,
Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...
,
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, a ...
, the
Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, ...
,
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
,
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkm ...
, the
Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the List of lakes by area, world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad s ...
,
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bord ...
, China,
Mongolia Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 millio ...
, and
North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korean Peninsula and shares borders with China and Russia to the north, at the Yalu (Amnok) and ...
. The Bering Strait separated the country from the United States, while the
La Pérouse Strait La Pérouse Strait (russian: пролив Лаперуза), or Sōya Strait, is a strait dividing the southern part of the Russian island of Sakhalin from the northern part of the Japanese island of Hokkaidō, and connecting the Sea of Japan o ...
separated it from Japan. The Soviet Union's highest mountain was Communism Peak (now
Ismoil Somoni Peak Ismoil Somoni Peak (Tajik: Қуллаи Исмоили Сомонӣ, ''Qulla-i Ismō‘il-i Sōmōnî/Qullaji Ismojili Somonī''; fa, قلّهٔ اسماعیل سامانی; russian: Пик Исмои́ла Сомони́, r=Pik Ismoíla Somon� ...
) in
Tajik SSR The Tajik Soviet Socialist Republic,, ''Çumhuriji Şūraviji Sotsialistiji Toçikiston''; russian: Таджикская Советская Социалистическая Республика, ''Tadzhikskaya Sovetskaya Sotsialisticheskaya Resp ...
, at . It also included most of the world's largest lakes; the
Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the List of lakes by area, world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad s ...
(shared with
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkm ...
), and
Lake Baikal Lake Baikal (, russian: Oзеро Байкал, Ozero Baykal ); mn, Байгал нуур, Baigal nuur) is a rift lake in Russia. It is situated in southern Siberia, between the Federal subjects of Russia, federal subjects of Irkutsk Oblast, I ...
in Russia, the world's largest and deepest freshwater lake.


History


Revolution and foundation (1917–1927)

Modern revolutionary activity in the
Russian Empire The Russian Empire was an empire and the final period of the List of Russian monarchs, Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended th ...
began with the 1825
Decembrist revolt The Decembrist Revolt ( ru , Восстание декабристов, translit = Vosstaniye dekabristov , translation = Uprising of the Decembrists) took place in Russia on , during the interregnum following the sudden death of Emperor Al ...
. Although
serfdom Serfdom was the status of many peasants under feudalism, specifically relating to manorialism, and similar systems. It was a condition of debt bondage and indentured servitude with similarities to and differences from slavery, which develo ...
was abolished in 1861, it was done on terms unfavourable to the peasants and served to encourage revolutionaries. A parliament—the
State Duma The State Duma (russian: Госуда́рственная ду́ма, r=Gosudárstvennaja dúma), commonly abbreviated in Russian as Gosduma ( rus, Госду́ма), is the lower house of the Federal Assembly of Russia, while the upper hous ...
—was established in 1906 after the
Russian Revolution of 1905 The Russian Revolution of 1905,. also known as the First Russian Revolution,. occurred on 22 January 1905, and was a wave of mass political and social unrest that spread through vast areas of the Russian Empire. The mass unrest was directed again ...
, but
Tsar Nicholas II Nicholas II or Nikolai II Alexandrovich Romanov; spelled in pre-revolutionary script. ( 186817 July 1918), known in the Russian Orthodox Church as Saint Nicholas the Passion-Bearer,. was the last Emperor of Russia, King of Congress Polan ...
resisted attempts to move from
absolute Absolute may refer to: Companies * Absolute Entertainment, a video game publisher * Absolute Radio, (formerly Virgin Radio), independent national radio station in the UK * Absolute Software Corporation, specializes in security and data risk manag ...
to a
constitutional monarchy A constitutional monarchy, parliamentary monarchy, or democratic monarchy is a form of monarchy in which the monarch exercises their authority in accordance with a constitution and is not alone in decision making. Constitutional monarchies di ...
.
Social unrest Civil disorder, also known as civil disturbance, civil unrest, or social unrest is a situation arising from a mass act of civil disobedience (such as a demonstration, riot, strike, or unlawful assembly) in which law enforcement has difficulty ...
continued and was aggravated during
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
by military defeat and food shortages in major cities. A spontaneous popular uprising in
Petrograd Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
, in response to the wartime decay of Russia's economy and morale, culminated in the February Revolution and the toppling of
Nicholas II Nicholas II or Nikolai II Alexandrovich Romanov; spelled in pre-revolutionary script. ( 186817 July 1918), known in the Russian Orthodox Church as Saint Nicholas the Passion-Bearer,. was the last Emperor of Russia, King of Congress Polan ...
and the imperial government in March 1917. The
tsarist autocracy Tsarist autocracy (russian: царское самодержавие, transcr. ''tsarskoye samoderzhaviye''), also called Tsarism, was a form of autocracy (later absolute monarchy) specific to the Grand Duchy of Moscow and its successor states t ...
was replaced by the Russian Provisional Government, which intended to conduct elections to the
Russian Constituent Assembly The All Russian Constituent Assembly (Всероссийское Учредительное собрание, Vserossiyskoye Uchreditelnoye sobraniye) was a constituent assembly convened in Russia after the October Revolution of 1917. It met fo ...
and to continue fighting on the side of the
Entente Entente, meaning a diplomatic "understanding", may refer to a number of agreements: History * Entente (alliance), a type of treaty or military alliance where the signatories promise to consult each other or to cooperate with each other in case o ...
in
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
. At the same time,
workers' council A workers' council or labor council is a form of political and economic organization in which a workplace or municipality is governed by a council made up of workers or their elected delegates. The workers within each council decide on what thei ...
s, known in Russian as ‘
Soviets Soviet people ( rus, сове́тский наро́д, r=sovyétsky naród), or citizens of the USSR ( rus, гра́ждане СССР, grázhdanye SSSR), was an umbrella demonym for the population of the Soviet Union. Nationality policy in th ...
’, sprang up across the country. The
Bolsheviks The Bolsheviks (russian: Большевики́, from большинство́ ''bol'shinstvó'', 'majority'),; derived from ''bol'shinstvó'' (большинство́), "majority", literally meaning "one of the majority". also known in English ...
, led by
Vladimir Lenin Vladimir Ilyich Ulyanov. ( 1870 – 21 January 1924), better known as Vladimir Lenin,. was a Russian revolutionary, politician, and political theorist. He served as the first and founding head of government of Soviet Russia from 1917 to 1 ...
, pushed for
socialist revolution Revolutionary socialism is a political philosophy, doctrine, and tradition within socialism that stresses the idea that a social revolution is necessary to bring about structural changes in society. More specifically, it is the view that revoluti ...
in the Soviets and on the streets. On 7 November 1917, the Red Guards stormed the
Winter Palace The Winter Palace ( rus, Зимний дворец, Zimnij dvorets, p=ˈzʲimnʲɪj dvɐˈrʲɛts) is a palace in Saint Petersburg that served as the official residence of the Emperor of all the Russias, Russian Emperor from 1732 to 1917. The p ...
in Petrograd, ending the rule of the Provisional Government and leaving all political power to the Soviets. This event would later be officially known in Soviet bibliographies as the
Great October Socialist Revolution The October Revolution,. officially known as the Great October Socialist Revolution. in the Soviet Union, also known as the Bolshevik Revolution, was a revolution in Russia led by the Bolshevik Party of Vladimir Lenin that was a key moment ...
. In December, the Bolsheviks signed an
armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from the ...
with the
Central Powers The Central Powers, also known as the Central Empires,german: Mittelmächte; hu, Központi hatalmak; tr, İttifak Devletleri / ; bg, Централни сили, translit=Tsentralni sili was one of the two main coalitions that fought in ...
, though by February 1918, fighting had resumed. In March, the Soviets ended involvement in the war and signed the
Treaty of Brest-Litovsk The Treaty of Brest-Litovsk (also known as the Treaty of Brest in Russia) was a separate peace treaty signed on 3 March 1918 between Russia and the Central Powers (Germany, Austria-Hungary, Bulgaria, and the Ottoman Empire), that ended Russia's ...
. A long and bloody
Civil War A civil war or intrastate war is a war between organized groups within the same state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government polic ...
ensued between the Reds and the
Whites White is a racialized classification of people and a skin color specifier, generally used for people of European origin, although the definition can vary depending on context, nationality, and point of view. Description of populations as ...
, starting in 1917 and ending in 1923 with the Reds' victory. It included
foreign intervention Interventionism refers to a political practice of intervention, particularly to the practice of governments to interfere in political affairs of other countries, staging military or trade interventions. Economic interventionism refers to a diffe ...
, the execution of the former tsar and his family, and the famine of 1921, which killed about five million people. In March 1921, during a related conflict with Poland, the
Peace of Riga The Peace of Riga, also known as the Treaty of Riga ( pl, Traktat Ryski), was signed in Riga on 18 March 1921, among Poland, Soviet Russia (acting also on behalf of Soviet Belarus) and Soviet Ukraine. The treaty ended the Polish–Soviet War. ...
was signed, splitting disputed territories in
Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...
and
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian invas ...
between the
Republic of Poland Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 mill ...
and
Soviet Russia The Russian Soviet Federative Socialist Republic, Russian SFSR or RSFSR ( rus, Российская Советская Федеративная Социалистическая Республика, Rossíyskaya Sovétskaya Federatívnaya Soci ...
. Soviet Russia had to resolve similar conflicts with the newly established republics of
Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, and t ...
,
Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bo ...
,
Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...
, and Lithuania.


Treaty on the Creation of the USSR

On 28 December 1922, a conference of plenipotentiary delegations from the
Russian SFSR The Russian Soviet Federative Socialist Republic, Russian SFSR or RSFSR ( rus, Российская Советская Федеративная Социалистическая Республика, Rossíyskaya Sovétskaya Federatívnaya Soci ...
, the
Transcaucasian SFSR , conventional_long_name = Transcaucasian Socialist Federative Soviet Republic , common_name = Transcaucasian SFSR , p1 = Armenian Soviet Socialist RepublicArmenian SSR , flag_p1 = Flag of SSRA ...
, the
Ukrainian SSR The Ukrainian Soviet Socialist Republic ( uk, Украї́нська Радя́нська Соціалісти́чна Респу́бліка, ; russian: Украи́нская Сове́тская Социалисти́ческая Респ ...
and the
Byelorussian SSR The Byelorussian Soviet Socialist Republic (BSSR, or Byelorussian SSR; be, Беларуская Савецкая Сацыялістычная Рэспубліка, Bielaruskaja Savieckaja Sacyjalistyčnaja Respublika; russian: Белор� ...
approved the
Treaty on the Creation of the USSR hy, ԽՍՀՄ ձեւավորման մասին պայմանագիր az, SSRİ-nin formalaşması haqqında müqavilə ka, ხელშეკრულება სსრკ-ს ფორმირების შესახებ , image ...
and the
Declaration of the Creation of the USSR The Declaration on the Creation of the Union of Soviet Socialist Republics is a historical document which, together with the Treaty on the Creation of the USSR, formed the constitutional basis for the creation of the Union of Soviet Socialist Re ...
, forming the Union of Soviet Socialist Republics. These two documents were confirmed by the first
Congress of Soviets of the USSR The All-Union Congress of Soviets (russian: Всесоюзный съезд Советов), was the formal governing body of the Soviet Union from its formation (30 December 1922) until the adoption of its second constitution. The Congress of ...
and signed by the heads of the delegations,
Mikhail Kalinin Mikhail Ivanovich Kalinin (russian: link=no, Михаи́л Ива́нович Кали́нин ; 3 June 1946), known familiarly by Soviet citizens as "Kalinych", was a Soviet politician and Old Bolshevik revolutionary. He served as head of s ...
,
Mikhail Tskhakaya Mikhail Grigoryevich Tskhakaya ( ka, მიხეილ გრიგოლის ძე ცხაკაია, russian: Михаил Григорьевич Цхакая; 4 May 1865 — 19 March 1950), also known as Barsov, was a Georgian revolution ...
,
Mikhail Frunze Mikhail Vasilyevich Frunze (russian: Михаил Васильевич Фрунзе; ro, Mihail Frunză; 2 February 1885 – 31 October 1925) was a Bolshevik leader during and just prior to the Russian Revolution of 1917. Born in the modern-da ...
,
Grigory Petrovsky Grigory Ivanovich Petrovsky (russian: Григо́рий Ива́нович Петро́вский, uk, Григо́рій Іва́нович Петро́вський, translit=Hryhorii Ivanovych Petrovskyi) (3 February 1878 - 9 January 1958) wa ...
, and
Alexander Chervyakov Alexander Grigoryevich Chervyakov (Aliaksandr Charviakou, be, Аляксандр Рыгоравіч Чарвякоў, ''Aliaksandr Ryhoravič Čarviakoŭ'' russian: Александр Григорьевич Червяков, ''Aleksandr Grigor'ev ...
, on 30 December 1922. The formal proclamation was made from the stage of the
Bolshoi Theatre The Bolshoi Theatre ( rus, Большо́й теа́тр, r=Bol'shoy teatr, literally "Big Theater", p=bɐlʲˈʂoj tʲɪˈatər) is a historic theatre in Moscow, Russia, originally designed by architect Joseph Bové, which holds ballet and op ...
. An intensive restructuring of the economy, industry and politics of the country began in the early days of Soviet power in 1917. A large part of this was done according to the
Bolshevik Initial Decrees Decrees (russian: декреты) were legislative acts of the highest Soviet institutions, primarily of the Council of People's Commissars (the highest executive body) and of VTsIK (the highest legislative body between sessions of the Congress of ...
, government documents signed by Vladimir Lenin. One of the most prominent breakthroughs was the
GOELRO plan GOELRO (russian: link=no, ГОЭЛРО) was the first Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communi ...
, which envisioned a major restructuring of the Soviet economy based on total electrification of the country. The plan became the prototype for subsequent
Five-Year Plans Five-year plan may refer to: Nation plans *Five-year plans of the Soviet Union, a series of nationwide centralized economic plans in the Soviet Union * Five-Year Plans of Argentina *Five-Year Plans of Bhutan, a series of national economic develop ...
and was fulfilled by 1931.On GOELRO Plan — at Kuzbassenergo.
After the economic policy of ‘
War communism War communism or military communism (russian: Военный коммунизм, ''Voyennyy kommunizm'') was the economic and political system that existed in Soviet Russia during the Russian Civil War from 1918 to 1921. According to Soviet hist ...
’ during the Russian Civil War, as a prelude to fully developing
socialism Socialism is a left-wing economic philosophy and movement encompassing a range of economic systems characterized by the dominance of social ownership of the means of production as opposed to private ownership. As a term, it describes the ...
in the country, the Soviet government permitted some private enterprise to coexist alongside nationalized industry in the 1920s, and total food requisition in the countryside was replaced by a food tax. From its creation, the government in the Soviet Union was based on the
one-party rule A one-party state, single-party state, one-party system, or single-party system is a type of sovereign state in which only one political party has the right to form the government, usually based on the existing constitution. All other partie ...
of the Communist Party (Bolsheviks). The stated purpose was to prevent the return of capitalist exploitation, and that the principles of
democratic centralism Democratic centralism is a practice in which political decisions reached by voting processes are binding upon all members of the political party. It is mainly associated with Leninism, wherein the party's political vanguard of professional revol ...
would be the most effective in representing the people's will in a practical manner. The debate over the future of the economy provided the background for a power struggle in the years after Lenin's death in 1924. Initially, Lenin was to be replaced by a ‘
troika Troika or troyka (from Russian тройка, meaning 'a set of three') may refer to: Cultural tradition * Troika (driving), a traditional Russian harness driving combination, a cultural icon of Russia * Troika (dance), a Russian folk dance Polit ...
’ consisting of
Grigory Zinoviev Grigory Yevseyevich Zinoviev, . Transliterated ''Grigorii Evseevich Zinov'ev'' according to the Library of Congress system. (born Hirsch Apfelbaum, – 25 August 1936), known also under the name Ovsei-Gershon Aronovich Radomyslsky (russian: Ов ...
of the
Ukrainian SSR The Ukrainian Soviet Socialist Republic ( uk, Украї́нська Радя́нська Соціалісти́чна Респу́бліка, ; russian: Украи́нская Сове́тская Социалисти́ческая Респ ...
,
Lev Kamenev Lev Borisovich Kamenev. ('' né'' Rozenfeld; – 25 August 1936) was a Bolshevik revolutionary and a prominent Soviet politician. Born in Moscow to parents who were both involved in revolutionary politics, Kamenev attended Imperial Moscow U ...
of the
Russian SFSR The Russian Soviet Federative Socialist Republic, Russian SFSR or RSFSR ( rus, Российская Советская Федеративная Социалистическая Республика, Rossíyskaya Sovétskaya Federatívnaya Soci ...
, and
Joseph Stalin Joseph Vissarionovich Stalin (born Ioseb Besarionis dze Jughashvili; – 5 March 1953) was a Georgian revolutionary and Soviet political leader who led the Soviet Union from 1924 until his death in 1953. He held power as General Secreta ...
of the
Transcaucasian SFSR , conventional_long_name = Transcaucasian Socialist Federative Soviet Republic , common_name = Transcaucasian SFSR , p1 = Armenian Soviet Socialist RepublicArmenian SSR , flag_p1 = Flag of SSRA ...
. On 1 February 1924, the USSR was recognized by the United Kingdom. The same year, a
Soviet Constitution During its existence, the Soviet Union had three different constitutions in force individually at different times between 31 January 1924 to 26 December 1991. Chronology of Soviet constitutions These three constitutions were: * 1924 Constitut ...
was approved, legitimizing the December 1922 union. According to Archie Brown the constitution was never an accurate guide to political reality in the USSR. For example the fact that the Party played the leading role in making and enforcing policy was not mentioned in it until 1977. The USSR was a federative entity of many constituent republics, each with its own political and administrative entities. However, the term ‘Soviet Russia’strictly applicable only to the Russian Federative Socialist Republicwas often applied to the entire country by non-Soviet writers.


Stalin era (1927–1953)

On 3 April 1922, Stalin was named the
General Secretary of the Communist Party of the Soviet Union A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry. In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". O ...
. Lenin had appointed Stalin the head of the
Workers' and Peasants' Inspectorate The People's Commissariat of the Workers' and Peasants' Inspection, also known as Rabkrin (; РКИ, RKI; Workers' and Peasants' Inspectorate, WPI) was a governmental establishment in the Soviet Union of ministerial level (people's commissariat) re ...
, which gave Stalin considerable power. By gradually consolidating his influence and isolating and outmaneuvering his rivals within the party, Stalin became the undisputed leader of the country and, by the end of the 1920s, established a
totalitarian Totalitarianism is a form of government and a political system that prohibits all opposition parties, outlaws individual and group opposition to the state and its claims, and exercises an extremely high if not complete degree of control and regul ...
rule. In October 1927, Zinoviev and
Leon Trotsky Lev Davidovich Bronstein. ( – 21 August 1940), better known as Leon Trotsky; uk, link= no, Лев Давидович Троцький; also transliterated ''Lyev'', ''Trotski'', ''Trotskij'', ''Trockij'' and ''Trotzky''. (), was a Russian M ...
were expelled from the Central Committee and forced into exile. In 1928, Stalin introduced the
first five-year plan The first five-year plan (russian: I пятилетний план, ) of the Union of Soviet Socialist Republics (USSR) was a list of economic goals, created by Communist Party General Secretary Joseph Stalin, based on his policy of socialism in ...
for building a
socialist economy Socialist economics comprises the economic theories, practices and norms of hypothetical and existing socialist economic systems. A socialist economic system is characterized by social ownership and operation of the means of production that may ...
. In place of the
internationalism Internationalism may refer to: * Cosmopolitanism, the view that all human ethnic groups belong to a single community based on a shared morality as opposed to communitarianism, patriotism and nationalism * International Style, a major architectura ...
expressed by Lenin throughout the Revolution, it aimed to build
Socialism in One Country Socialism in one country was a Soviet state policy to strengthen socialism within the country rather than socialism globally. Given the defeats of the 1917–1923 European communist revolutions, Joseph Stalin and Nikolai Bukharin encouraged the ...
. In industry, the state assumed control over all existing enterprises and undertook an intensive program of
industrialization Industrialisation ( alternatively spelled industrialization) is the period of social and economic change that transforms a human group from an agrarian society into an industrial society. This involves an extensive re-organisation of an econ ...
. In
agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled peop ...
, rather than adhering to the ‘lead by example’ policy advocated by Lenin, forced collectivization of farms was implemented all over the country.
Famines A famine is a widespread scarcity of food, caused by several factors including war, natural disasters, crop failure, population imbalance, widespread poverty, an economic catastrophe or government policies. This phenomenon is usually accompa ...
ensued as a result, causing deaths estimated at three to seven million; surviving
kulak Kulak (; russian: кула́к, r=kulák, p=kʊˈlak, a=Ru-кулак.ogg; plural: кулаки́, ''kulakí'', 'fist' or 'tight-fisted'), also kurkul () or golchomag (, plural: ), was the term which was used to describe peasants who owned ove ...
s were persecuted, and many were sent to
Gulag The Gulag, an acronym for , , "chief administration of the camps". The original name given to the system of camps controlled by the State Political Directorate, GPU was the Main Administration of Corrective Labor Camps (, )., name=, group= ...
s to do
forced labor Forced labour, or unfree labour, is any work relation, especially in modern or early modern history, in which people are employed against their will with the threat of destitution, detention, violence including death, or other forms of e ...
. Social upheaval continued in the mid-1930s. Despite the turmoil of the mid-to-late 1930s, the country developed a robust industrial economy in the years preceding
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
. Closer cooperation between the USSR and the West developed in the early 1930s. From 1932 to 1934, the country participated in the
World Disarmament Conference The Conference for the Reduction and Limitation of Armaments, generally known as the Geneva Conference or World Disarmament Conference, was an international conference of states held in Geneva, Switzerland, between February 1932 and November 193 ...
. In 1933, diplomatic relations between the United States and the USSR were established when in November, the newly elected President of the United States, Franklin D. Roosevelt, chose to recognize Stalin's Communist government formally and negotiated a new trade agreement between the two countries. In September 1934, the country joined the
League of Nations The League of Nations (french: link=no, Société des Nations ) was the first worldwide Intergovernmental organization, intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by ...
. After the
Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlism, Carlists, and The Rebellion ( es, La Rebeli ...
broke out in 1936, the USSR actively supported the Republican forces against the
Nationalists Nationalism is an idea and movement that holds that the nation should be congruent with the state. As a movement, nationalism tends to promote the interests of a particular nation (as in a group of people), Smith, Anthony. ''Nationalism: Th ...
, who were supported by
Fascist Italy Fascism is a far-right, authoritarian, ultra-nationalist political ideology and movement,: "extreme militaristic nationalism, contempt for electoral democracy and political and cultural liberalism, a belief in natural social hierarchy and the ...
and
Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
. In December 1936, Stalin unveiled a new
constitution A constitution is the aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organisation or other type of entity and commonly determine how that entity is to be governed. When these princip ...
that was praised by supporters around the world as the most democratic constitution imaginable, though there was some skepticism. Stalin's
Great Purge The Great Purge or the Great Terror (russian: Большой террор), also known as the Year of '37 (russian: 37-й год, translit=Tridtsat sedmoi god, label=none) and the Yezhovshchina ('period of Yezhov'), was Soviet General Secreta ...
resulted in the detainment or execution of many ‘
Old Bolshevik Old Bolshevik (russian: ста́рый большеви́к, ''stary bolshevik''), also called Old Bolshevik Guard or Old Party Guard, was an unofficial designation for a member of the Bolshevik faction of the Russian Social Democratic Labour Par ...
s’ who had participated in the October Revolution with Lenin. According to declassified Soviet archives, the
NKVD The People's Commissariat for Internal Affairs (russian: Наро́дный комиссариа́т вну́тренних дел, Naródnyy komissariát vnútrennikh del, ), abbreviated NKVD ( ), was the interior ministry of the Soviet Union. ...
arrested more than one and a half million people in 1937 and 1938, of whom 681,692 were shot. Over those two years, there were an average of over one thousand executions a day. In 1939, after attempts to form a military alliance with Britain and France against Germany failed, the Soviet Union made a dramatic shift towards Nazi Germany. Almost a year after Britain and France had concluded the
Munich Agreement The Munich Agreement ( cs, Mnichovská dohoda; sk, Mníchovská dohoda; german: Münchner Abkommen) was an agreement concluded at Munich on 30 September 1938, by Germany, the United Kingdom, France, and Italy. It provided "cession to Germany ...
with Germany, the Soviet Union made agreements with Germany as well, both militarily and economically during extensive talks. The two countries concluded the
Molotov–Ribbentrop Pact The Molotov–Ribbentrop Pact was a non-aggression pact between Nazi Germany and the Soviet Union that enabled those powers to partition Poland between them. The pact was signed in Moscow on 23 August 1939 by German Foreign Minister Joachim von Ri ...
and the on 23 August 1939. The former made possible the Soviet occupation of Lithuania, Latvia, Estonia, Bessarabia, northern Bukovina, and
eastern Poland Eastern Poland is a macroregion in Poland comprising the Lublin, Podkarpackie, Podlaskie, Świętokrzyskie, and Warmian-Masurian voivodeships. The make-up of the distinct macroregion is based not only of geographical criteria, but also economic ...
. On 1 September, Germany invaded Poland and on the 17th the Soviet Union invaded Poland as well. On 6 October, Poland fell and part of the Soviet occupation zone was then handed over to Germany. On 10 October, the Soviet Union and Lithuania signed an agreement whereby the Soviet Union transferred Polish sovereignty over the Vilna region to Lithuania, and on 28 October the boundary between the Soviet occupation zone and the new territory of Lithuania was officially demarcated. On 1 November, the Soviet Union annexed Western Ukraine, followed by Western Belarus on the 2nd. In late November, unable to coerce the
Republic of Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...
by diplomatic means into moving its border back from
Leningrad Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
, Stalin ordered the
invasion of Finland The Winter War,, sv, Vinterkriget, rus, Зи́мняя война́, r=Zimnyaya voyna. The names Soviet–Finnish War 1939–1940 (russian: link=no, Сове́тско-финская война́ 1939–1940) and Soviet–Finland War 1 ...
. On 14 December 1939, the Soviet Union was expelled from the
League of Nations The League of Nations (french: link=no, Société des Nations ) was the first worldwide Intergovernmental organization, intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by ...
for invading Finland. In the east, the Soviet military won several decisive victories during border clashes with the
Empire of Japan The also known as the Japanese Empire or Imperial Japan, was a historical nation-state and great power that existed from the Meiji Restoration in 1868 until the enactment of the post-World War II 1947 constitution and subsequent for ...
in 1938 and 1939. However, in April 1941, the USSR signed the
Soviet–Japanese Neutrality Pact The , also known as the , was a non-aggression pact between the Soviet Union and the Empire of Japan signed on April 13, 1941, two years after the conclusion of the Soviet-Japanese Border War. The agreement meant that for most of World War II ...
with Japan, recognizing the territorial integrity of
Manchukuo Manchukuo, officially the State of Manchuria prior to 1934 and the Empire of (Great) Manchuria after 1934, was a puppet state of the Empire of Japan in Manchuria from 1932 until 1945. It was founded as a republic in 1932 after the Japanese in ...
, a Japanese
puppet state A puppet state, puppet régime, puppet government or dummy government, is a state that is ''de jure'' independent but ''de facto'' completely dependent upon an outside power and subject to its orders.Compare: Puppet states have nominal sover ...
.


World War II

Germany broke the Molotov–Ribbentrop Pact and invaded the Soviet Union on 22 June 1941 starting what was known in the USSR as the
Great Patriotic War The Eastern Front of World War II was a Theater (warfare), theatre of conflict between the European Axis powers against the Soviet Union (USSR), Polish Armed Forces in the East, Poland and other Allies of World War II, Allies, which encom ...
. The
Red Army The Workers' and Peasants' Red Army (Russian language, Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist R ...
stopped the seemingly invincible German Army at the
Battle of Moscow The Battle of Moscow was a military campaign that consisted of two periods of strategically significant fighting on a sector of the Eastern Front (World War II), Eastern Front during World War II. It took place between September 1941 and January ...
. The
Battle of Stalingrad The Battle of Stalingrad (23 August 19422 February 1943) was a major battle on the Eastern Front of World War II where Nazi Germany and its allies unsuccessfully fought the Soviet Union for control of the city of Stalingrad (later re ...
, which lasted from late 1942 to early 1943, dealt a severe blow to Germany from which they never fully recovered and became a turning point in the war. After Stalingrad, Soviet forces drove through Eastern Europe to Berlin before Germany surrendered in 1945. The German Army suffered 80% of its military deaths in the Eastern Front.
Harry Hopkins Harry Lloyd Hopkins (August 17, 1890 – January 29, 1946) was an American statesman, public administrator, and presidential advisor. A trusted deputy to President Franklin Delano Roosevelt, Hopkins directed New Deal relief programs before servi ...
, a close foreign policy advisor to Franklin D. Roosevelt, spoke on 10 August 1943 of the USSR's decisive role in the war. In the same year, the USSR, in fulfilment of its agreement with the Allies at the
Yalta Conference The Yalta Conference (codenamed Argonaut), also known as the Crimea Conference, held 4–11 February 1945, was the World War II meeting of the heads of government of the United States, the United Kingdom, and the Soviet Union to discuss the post ...
, denounced the
Soviet–Japanese Neutrality Pact The , also known as the , was a non-aggression pact between the Soviet Union and the Empire of Japan signed on April 13, 1941, two years after the conclusion of the Soviet-Japanese Border War. The agreement meant that for most of World War II ...
in April 1945Denunciation of the neutrality pact
5 April 1945. (
Avalon Project The Avalon Project is a digital library of documents relating to law, history and diplomacy. The project is part of the Yale Law School Lillian Goldman Law Library. The project contains online electronic copies of documents dating back to the ...
at
Yale University Yale University is a Private university, private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the List of Colonial Colleges, third-oldest institution of higher education in the United Sta ...
)
and invaded Manchukuo and other Japan-controlled territories on 9 August 1945.Soviet Declaration of War on Japan
, 8 August 1945. (
Avalon Project The Avalon Project is a digital library of documents relating to law, history and diplomacy. The project is part of the Yale Law School Lillian Goldman Law Library. The project contains online electronic copies of documents dating back to the ...
at
Yale University Yale University is a Private university, private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the List of Colonial Colleges, third-oldest institution of higher education in the United Sta ...
)
This conflict ended with a decisive Soviet victory, contributing to the unconditional surrender of Japan and the end of World War II. The USSR suffered greatly in the war, losing around 27 million people. Approximately 2.8 million Soviet POWs died of starvation, mistreatment, or executions in just eight months of 1941–42. During the war, the country together with the United States, the United Kingdom and China were considered the Big Four Allied powers, and later became the
Four Policemen The "Four Policemen" was a postwar council with the Big Four that US President Franklin Roosevelt proposed as a guarantor of world peace. Their members were called the Four Powers during World War II and were the four major Allies of World War II ...
that formed the basis of the
United Nations Security Council The United Nations Security Council (UNSC) is one of the Organs of the United Nations, six principal organs of the United Nations (UN) and is charged with ensuring international security, international peace and security, recommending the admi ...
. It emerged as a superpower in the post-war period. Once denied
diplomatic recognition Diplomatic recognition in international law is a unilateral declarative political act of a state that acknowledges an act or status of another state or government in control of a state (may be also a recognized state). Recognition can be accord ...
by the Western world, the USSR had official relations with practically every country by the late 1940s. A member of the United Nations at its foundation in 1945, the country became one of the five permanent members of the
United Nations Security Council The United Nations Security Council (UNSC) is one of the Organs of the United Nations, six principal organs of the United Nations (UN) and is charged with ensuring international security, international peace and security, recommending the admi ...
, which gave it the right to veto any of its resolutions.


Cold War

During the immediate post-war period, the Soviet Union rebuilt and expanded its economy, while maintaining its strictly centralized control. It took effective control over most of the countries of Eastern Europe (except
Yugoslavia Yugoslavia (; sh-Latn-Cyrl, separator=" / ", Jugoslavija, Југославија ; sl, Jugoslavija ; mk, Југославија ;; rup, Iugoslavia; hu, Jugoszlávia; rue, label= Pannonian Rusyn, Югославия, translit=Juhoslavij ...
and later
Albania Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic The Adriatic Sea () is a body of water separating the ...
), turning them into
satellite state A satellite state or dependent state is a country that is formally independent in the world, but under heavy political, economic, and military influence or control from another country. The term was coined by analogy to planetary objects orbitin ...
s. The USSR bound its satellite states in a military alliance, the
Warsaw Pact The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republi ...
, in 1955, and an economic organization, Council for Mutual Economic Assistance or
Comecon The Council for Mutual Economic Assistance (, ; English abbreviation COMECON, CMEA, CEMA, or CAME) was an economic organization from 1949 to 1991 under the leadership of the Soviet Union that comprised the countries of the Eastern Bloc along wi ...
, a counterpart to the European Economic Community (EEC), from 1949 to 1991. The USSR concentrated on its own recovery, seizing and transferring most of Germany's industrial plants, and it exacted
war reparations War reparations are compensation payments made after a war by one side to the other. They are intended to cover damage or injury inflicted during a war. History Making one party pay a war indemnity is a common practice with a long history. ...
from
East Germany East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until its dissolution on 3 October 1990. In these years the state ...
,
Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...
,
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, a ...
, and
Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Mac ...
using Soviet-dominated joint enterprises. It also instituted trading arrangements deliberately designed to favour the country. Moscow controlled the Communist parties that ruled the satellite states, and they followed orders from the Kremlin. Later, the Comecon supplied aid to the eventually victorious
Chinese Communist Party The Chinese Communist Party (CCP), officially the Communist Party of China (CPC), is the founding and sole ruling party of the People's Republic of China (PRC). Under the leadership of Mao Zedong, the CCP emerged victorious in the Chinese Ci ...
, and its influence grew elsewhere in the world. Fearing its ambitions, the Soviet Union's wartime allies, the United Kingdom and the United States, became its enemies. In the ensuing Cold War, the two sides clashed indirectly in
proxy war A proxy war is an armed conflict between two states or non-state actors, one or both of which act at the instigation or on behalf of other parties that are not directly involved in the hostilities. In order for a conflict to be considered a pr ...
s.


De-Stalinization and Khrushchev Thaw (1953–1964)

Stalin died on 5 March 1953. Without a mutually agreeable successor, the highest Communist Party officials initially opted to rule the Soviet Union jointly through a troika headed by
Georgy Malenkov Georgy Maximilianovich Malenkov ( – 14 January 1988) was a Soviet politician who briefly succeeded Joseph Stalin as the leader of the Soviet Union. However, at the insistence of the rest of the Presidium, he relinquished control over the p ...
. This did not last, however, and
Nikita Khrushchev Nikita Sergeyevich Khrushchev (– 11 September 1971) was the First Secretary of the Communist Party of the Soviet Union from 1953 to 1964 and chairman of the country's Council of Ministers from 1958 to 1964. During his rule, Khrushchev ...
eventually won the ensuing power struggle by the mid-1950s. In 1956, he denounced Joseph Stalin and proceeded to ease controls over the party and society. This was known as de-Stalinization. Moscow considered Eastern Europe to be a critically vital buffer zone for the forward defence of its western borders, in case of another major invasion such as the German invasion of 1941. For this reason, the USSR sought to cement its control of the region by transforming the Eastern European countries into satellite states, dependent upon and subservient to its leadership. As a result, Soviet military forces were used to suppress an anti-communist uprising in
Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...
in 1956. In the late 1950s, a confrontation with China regarding the Soviet rapprochement with the West, and what
Mao Zedong Mao Zedong pronounced ; also Romanization of Chinese, romanised traditionally as Mao Tse-tung. (26 December 1893 – 9 September 1976), also known as Chairman Mao, was a Chinese communist revolutionary who was the List of national founde ...
perceived as Khrushchev's
revisionism Revisionism may refer to: * Historical revisionism, the critical re-examination of presumed historical facts and existing historiography ** The "revisionists" school of thought in Soviet and Communist studies, as opposed to the Cold War "tradition ...
, led to the
Sino–Soviet split The Sino-Soviet split was the breaking of political relations between the People's Republic of China and the Soviet Union caused by doctrinal divergences that arose from their different interpretations and practical applications of Marxism–Len ...
. This resulted in a break throughout the global Marxist–Leninist movement, with the governments in
Albania Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic The Adriatic Sea () is a body of water separating the ...
,
Cambodia Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailan ...
and
Somalia Somalia, , Osmanya script: 𐒈𐒝𐒑𐒛𐒐𐒘𐒕𐒖; ar, الصومال, aṣ-Ṣūmāl officially the Federal Republic of SomaliaThe ''Federal Republic of Somalia'' is the country's name per Article 1 of thProvisional Constitut ...
choosing to ally with China. During this period of the late 1950s and early 1960s, the USSR continued to realize scientific and technological exploits in the
Space Race The Space Race was a 20th-century competition between two Cold War rivals, the United States and the Soviet Union, to achieve superior spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the ...
, rivaling the United States: launching the first artificial satellite, Sputnik 1 in 1957; a living dog named
Laika Laika (russian: link=no, Лайка; – 3 November 1957) was a Soviet space dog who was one of the first animals in space and the first to orbit the Earth. A stray mongrel from the streets of Moscow, she flew aboard the Sputnik 2 spacec ...
in 1957; the first human being,
Yuri Gagarin Yuri Alekseyevich Gagarin; Gagarin's first name is sometimes transliterated as ''Yuriy'', ''Youri'', or ''Yury''. (9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut who became the first human to journey into outer space. Tr ...
in 1961; the first woman in space,
Valentina Tereshkova Valentina Vladimirovna Tereshkova ( rus, Валентина Владимировна Терешкова, links=no, p=vɐlʲɪnʲˈtʲinə vlɐˈdʲimʲɪrəvnə tʲɪrʲɪʂˈkovə, a=Valentina Tereshkova.ogg; born 6 March 1937) is an engine ...
in 1963;
Alexei Leonov Alexei Arkhipovich Leonov. (30 May 1934 – 11 October 2019) was a Soviet and Russian cosmonaut, Air Force major general, writer, and artist. On 18 March 1965, he became the first person to conduct a spacewalk, exiting the capsule during th ...
, the first person to walk in space in 1965; the first soft landing on the Moon by spacecraft
Luna 9 Luna 9 (Луна-9), internal designation Ye-6 No.13, was an uncrewed space mission of the Soviet Union's Luna programme. On 3 February 1966, the Luna 9 spacecraft became the first spacecraft to achieve a survivable landing on a celestial bod ...
in 1966; and the first Moon rovers,
Lunokhod 1 ''Lunokhod 1'' ( Russian: Луноход-1 ("Moonwalker 1"), also known as Аппарат 8ЕЛ № 203 ("Device 8EL No. 203")) was the first of two robotic lunar rovers landed on the Moon by the Soviet Union as part of its Lunokhod program. The ...
and
Lunokhod 2 ''Lunokhod 2'' (russian: Луноход-2 ("Moonwalker 2"), also known as Аппарат 8ЕЛ № 204 ("Device 8EL No. 204")) was the second of two unmanned lunar rovers that landed on the Moon by the Soviet Union as part of the Lunokhod prog ...
. Khrushchev initiated ‘ The Thaw’, a complex shift in political, cultural and economic life in the country. This included some openness and contact with other nations and new social and economic policies with more emphasis on commodity goods, allowing a dramatic rise in living standards while maintaining high levels of economic growth. Censorship was relaxed as well. Khrushchev's reforms in agriculture and administration, however, were generally unproductive. In 1962, he precipitated a crisis with the United States over the Soviet deployment of
nuclear missiles Nuclear weapons delivery is the technology and systems used to place a nuclear weapon at the position of detonation, on or near its target. Several methods have been developed to carry out this task. ''Strategic'' nuclear weapons are used primari ...
in
Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...
. An agreement was made with the United States to remove nuclear missiles from both Cuba and
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
, concluding the crisis. This event caused Khrushchev much embarrassment and loss of prestige, resulting in his removal from power in 1964.


Era of Stagnation (1964–1985)

Following the ousting of Khrushchev, another period of
collective leadership A collective is a group of entities that share or are motivated by at least one common issue or interest, or work together to achieve a common objective. Collectives can differ from cooperatives in that they are not necessarily focused upon an ...
ensued, consisting of Leonid Brezhnev as general secretary,
Alexei Kosygin Alexei Nikolayevich Kosygin ( rus, Алексе́й Никола́евич Косы́гин, p=ɐlʲɪkˈsʲej nʲɪkɐˈla(j)ɪvʲɪtɕ kɐˈsɨɡʲɪn; – 18 December 1980) was a Soviet statesman during the Cold War. He served as the Prem ...
as Premier and
Nikolai Podgorny Nikolai Viktorovich Podgorny, ''Mykola Viktorovych Pidhornyy'' rus, Никола́й Ви́кторович Подго́рный, p=nʲɪkɐˈlaj ˈvʲiktərəvʲɪtɕ pɐdˈgornɨj, links=yes ( – 12 January 1983) was a Soviet statesman who ...
as Chairman of the Presidium, lasting until Brezhnev established himself in the early 1970s as the preeminent Soviet leader. In 1968, the Soviet Union and Warsaw Pact allies
invaded An invasion is a military offensive in which large numbers of combatants of one geopolitical entity aggressively enter territory owned by another such entity, generally with the objective of either: conquering; liberating or re-establishing co ...
Czechoslovakia , rue, Чеськословеньско, , yi, טשעכאסלאוואקיי, , common_name = Czechoslovakia , life_span = 1918–19391945–1992 , p1 = Austria-Hungary , image_p1 ...
to halt the
Prague Spring The Prague Spring ( cs, Pražské jaro, sk, Pražská jar) was a period of political liberalization and mass protest in the Czechoslovak Socialist Republic. It began on 5 January 1968, when reformist Alexander Dubček was elected First Se ...
reforms. In the aftermath, Brezhnev justified the invasion and previous military interventions as well as any potential military interventions in the future by introducing the
Brezhnev Doctrine The Brezhnev Doctrine was a Soviet foreign policy that proclaimed any threat to socialist rule in any state of the Soviet Bloc in Central and Eastern Europe was a threat to them all, and therefore justified the intervention of fellow socialist st ...
, which proclaimed any threat to socialist rule in a Warsaw Pact state as a threat to all Warsaw Pact states, therefore justifying military intervention. Brezhnev presided throughout ''
détente Détente (, French: "relaxation") is the relaxation of strained relations, especially political ones, through verbal communication. The term, in diplomacy, originates from around 1912, when France and Germany tried unsuccessfully to reduce ...
'' with the West that resulted in treaties on armament control (
SALT I The Strategic Arms Limitation Talks (SALT) were two rounds of bilateral conferences and corresponding international treaties involving the United States and the Soviet Union. The Cold War superpowers dealt with arms control in two rounds o ...
,
SALT II The Strategic Arms Limitation Talks (SALT) were two rounds of bilateral conferences and corresponding international treaties involving the United States and the Soviet Union. The Cold War superpowers dealt with arms control in two rounds o ...
,
Anti-Ballistic Missile Treaty The Anti-Ballistic Missile Treaty (ABM Treaty or ABMT) (1972–2002) was an arms control treaty between the United States and the Soviet Union on the limitation of the anti-ballistic missile (ABM) systems used in defending areas against ballis ...
) while at the same time building up Soviet military might. In October 1977, the third Soviet Constitution was unanimously adopted. The prevailing mood of the Soviet leadership at the time of Brezhnev's death in 1982 was one of aversion to change. The long period of Brezhnev's rule had come to be dubbed one of ‘standstill’, with an ageing and ossified top political leadership. This period is also known as the Era of Stagnation, a period of adverse economic, political, and social effects in the country, which began during the rule of Brezhnev and continued under his successors
Yuri Andropov Yuri Vladimirovich Andropov (– 9 February 1984) was the sixth paramount leader of the Soviet Union and the fourth General Secretary of the Communist Party of the Soviet Union. After Leonid Brezhnev's 18-year rule, Andropov served in the po ...
and
Konstantin Chernenko Konstantin Ustinovich Chernenko uk, Костянтин Устинович Черненко, translit=Kostiantyn Ustynovych Chernenko (24 September 1911 – 10 March 1985) was a Soviet politician and the seventh General Secretary of the Comm ...
. In late 1979, the Soviet Union's military intervened in the ongoing civil war in neighboring Afghanistan, effectively ending a détente with the West.


Perestroika and Glasnost reforms (1985–1991)

Two developments dominated the decade that followed: the increasingly apparent crumbling of the Soviet Union's economic and political structures, and the patchwork attempts at reforms to reverse that process. Kenneth S. Deffeyes argued in ''
Beyond Oil ''Beyond Oil: The View from Hubbert's Peak'' is a 2005 book by Kenneth S. Deffeyes. Deffeyes was a geologist who warned of the coming oil crisis in a previous book called '' Hubbert's Peak''. Overview In this book, he explores the Earth's suppl ...
'' that the
Reagan administration Ronald Reagan's tenure as the 40th president of the United States began with his first inauguration on January 20, 1981, and ended on January 20, 1989. Reagan, a Republican from California, took office following a landslide victory over ...
encouraged
Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in Western Asia. It covers the bulk of the Arabian Peninsula, and has a land area of about , making it the List of Asian countries by area, fifth-largest country in Asia ...
to lower the price of oil to the point where the Soviets could not make a profit selling their oil, and resulted in the depletion of the country's
hard currency In macroeconomics, hard currency, safe-haven currency, or strong currency is any globally traded currency that serves as a reliable and stable store of value. Factors contributing to a currency's ''hard'' status might include the stability and ...
reserves. Brezhnev's next two successors, transitional figures with deep roots in his tradition, did not last long.
Yuri Andropov Yuri Vladimirovich Andropov (– 9 February 1984) was the sixth paramount leader of the Soviet Union and the fourth General Secretary of the Communist Party of the Soviet Union. After Leonid Brezhnev's 18-year rule, Andropov served in the po ...
was 68 years old and
Konstantin Chernenko Konstantin Ustinovich Chernenko uk, Костянтин Устинович Черненко, translit=Kostiantyn Ustynovych Chernenko (24 September 1911 – 10 March 1985) was a Soviet politician and the seventh General Secretary of the Comm ...
72 when they assumed power; both died in less than two years. In an attempt to avoid a third short-lived leader, in 1985, the Soviets turned to the next generation and selected Mikhail Gorbachev. He made significant changes in the economy and party leadership, called '' perestroika''. His policy of ''
glasnost ''Glasnost'' (; russian: link=no, гласность, ) has several general and specific meanings – a policy of maximum openness in the activities of state institutions and freedom of information, the inadmissibility of hushing up problems, ...
'' freed public
access to information Access may refer to: Companies and organizations * ACCESS (Australia), an Australian youth network * Access (credit card), a former credit card in the United Kingdom * Access Co., a Japanese software company * Access Healthcare, an Indian BPO s ...
after decades of heavy government censorship. Gorbachev also moved to end the Cold War. In 1988, the USSR abandoned its
war in Afghanistan War in Afghanistan, Afghan war, or Afghan civil war may refer to: *Conquest of Afghanistan by Alexander the Great (330 BC – 327 BC) * Muslim conquests of Afghanistan (637–709) *Conquest of Afghanistan by the Mongol Empire (13th century), see al ...
and began to withdraw its forces. In the following year, Gorbachev refused to interfere in the internal affairs of the Soviet satellite states, which paved the way for the
Revolutions of 1989 The Revolutions of 1989, also known as the Fall of Communism, was a revolutionary wave that resulted in the end of most communist states in the world. Sometimes this revolutionary wave is also called the Fall of Nations or the Autumn of Nat ...
. In particular, the standstill of the Soviet Union at the
Pan-European Picnic The Pan-European Picnic (german: Paneuropäisches Picknick; hu, páneurópai piknik; sk, Paneurópsky piknik) was a peace demonstration held on the Austrian- Hungarian border near Sopron, Hungary on 19 August 1989. The opening of the border ...
in August 1989 then set a peaceful chain reaction in motion at the end of which the Eastern Bloc collapsed. With the tearing down of the Berlin Wall and with East and West Germany pursuing unification, the
Iron Curtain The Iron Curtain was the political boundary dividing Europe into two separate areas from the end of World War II in 1945 until the end of the Cold War in 1991. The term symbolizes the efforts by the Soviet Union (USSR) to block itself and its s ...
between
the West West is a cardinal direction or compass point. West or The West may also refer to: Geography and locations Global context * The Western world * Western culture and Western civilization in general * The Western Bloc, countries allied with NATO ...
and Soviet-controlled regions came down. At the same time, the Soviet republics started legal moves towards potentially declaring
sovereignty Sovereignty is the defining authority within individual consciousness, social construct, or territory. Sovereignty entails hierarchy within the state, as well as external autonomy for states. In any state, sovereignty is assigned to the perso ...
over their territories, citing the freedom to secede in Article 72 of the USSR constitution. On 7 April 1990, a law was passed allowing a republic to secede if more than two-thirds of its residents voted for it in a referendum. Many held their first free elections in the Soviet era for their own national legislatures in 1990. Many of these legislatures proceeded to produce legislation contradicting the Union laws in what was known as the ‘
War of Laws War is an intense armed conflict between states, governments, societies, or paramilitary groups such as mercenaries, insurgents, and militias. It is generally characterized by extreme violence, destruction, and mortality, using regular o ...
’. In 1989, the
Russian SFSR The Russian Soviet Federative Socialist Republic, Russian SFSR or RSFSR ( rus, Российская Советская Федеративная Социалистическая Республика, Rossíyskaya Sovétskaya Federatívnaya Soci ...
convened a newly elected Congress of People's Deputies.
Boris Yeltsin Boris Nikolayevich Yeltsin ( rus, Борис Николаевич Ельцин, p=bɐˈrʲis nʲɪkɐˈla(j)ɪvʲɪtɕ ˈjelʲtsɨn, a=Ru-Boris Nikolayevich Yeltsin.ogg; 1 February 1931 – 23 April 2007) was a Soviet and Russian politician wh ...
was elected its chairman. On 12 June 1990, the Congress Declaration of State Sovereignty of the Russian Soviet Federative Socialist Republic, declared Russia's sovereignty over its territory and proceeded to pass laws that attempted to supersede some of the Soviet laws. After a landslide victory of Sąjūdis in Lithuania, that country declared its independence restored on 11 March 1990. A 1991 Soviet Union referendum, referendum for the preservation of the USSR was held on 17 March 1991 in nine republics (the remainder having boycotted the vote), with the majority of the population in those republics voting for preservation of the Union. The referendum gave Gorbachev a minor boost. In the summer of 1991, the Union of Sovereign States, New Union Treaty, which would have turned the country into a much looser Union, was agreed upon by eight republics. The signing of the treaty, however, was interrupted by the 1991 August Coup, August Coup—an attempted coup d'état by hardline members of the government and the KGB who sought to reverse Gorbachev's reforms and reassert the central government's control over the republics. After the coup collapsed, Yeltsin was seen as a hero for his decisive actions, while Gorbachev's power was effectively ended. The balance of power tipped significantly towards the republics. In August 1991, Latvia and Estonia immediately declared the restoration of their full independence (following Lithuania's 1990 example). Gorbachev resigned as general secretary in late August, and soon afterwards, the party's activities were indefinitely suspended—effectively ending its rule. By the fall, Gorbachev could no longer influence events outside Moscow, and he was being challenged even there by Yeltsin, who had been elected President of Russia in July 1991.


Dissolution and aftermath

The remaining 12 republics continued discussing new, increasingly looser, models of the Union. However, by December all except Russia and Kazakh Soviet Socialist Republic, Kazakhstan had formally declared independence. During this time, Yeltsin took over what remained of the Soviet government, including the Moscow Kremlin. The final blow was struck on 1 December when Ukraine, the second-most powerful republic, 1991 Ukrainian independence referendum, voted overwhelmingly for independence. Ukraine's secession ended any realistic chance of the country staying together even on a limited scale. On 8 December 1991, the presidents of Russia, Ukraine and
Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...
(formerly Byelorussia), signed the Belavezha Accords, which declared the Soviet Union dissolved and established the Commonwealth of Independent States (CIS) in its place. While doubts remained over the authority of the accords to do this, on 21 December 1991, the representatives of all Soviet republics except
Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to t ...
signed the Alma-Ata Protocol, which confirmed the accords. On 25 December 1991, Gorbachev resigned as the President of the USSR, declaring the office extinct. He turned the powers that had been vested in the presidency over to Yeltsin. That night, the Soviet flag was lowered for the last time, and the Flag of Russia, Russian tricolour was raised in its place. The following day, the Supreme Soviet of the Soviet Union, Supreme Soviet, the highest governmental body, voted both itself and the country out of existence. This is generally recognized as marking the official, final dissolution of the Soviet Union as a functioning state, and the end of the Cold War. The Soviet Army initially remained under overall CIS command but was soon absorbed into the different military forces of the newly independent states. The few remaining Soviet institutions that had not been taken over by Russia ceased to function by the end of 1991. Following the dissolution, Russia was internationally recognizedCountry Profile: Russia
Foreign & Commonwealth Office of the United Kingdom.
as its Succession of states, legal successor on the international stage. To that end, Russia voluntarily accepted all Soviet foreign debt and claimed Soviet overseas properties as its own. Under the 1992 Lisbon Protocol, Russia also agreed to receive all nuclear weapons remaining in the territory of other former Soviet republics. Since then, the Russian Federation has assumed the Soviet Union's rights and obligations.
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian invas ...
has refused to recognize exclusive Russian claims to succession of the USSR and claimed such status for Ukraine as well, which was codified in Articles 7 and 8 of its 1991 law On Legal Succession of Ukraine. Since its independence in 1991, Ukraine has continued to pursue claims against Russia in foreign courts, seeking to recover its share of the foreign property that was owned by the USSR. The dissolution was followed by a severe drop in economic and social conditions in
post-Soviet states The post-Soviet states, also known as the former Soviet Union (FSU), the former Soviet Republics and in Russia as the near abroad (russian: links=no, ближнее зарубежье, blizhneye zarubezhye), are the 15 sovereign states that wer ...
, including a rapid increase in poverty, crime, corruption, unemployment, homelessness, rates of disease, infant mortality and domestic violence, as well as demographic losses, income inequality and the rise of an Russian oligarchs, oligarchical class, along with decreases in calorie intake, life expectancy, adult literacy, and income. Between 1988 and 1989 and 1993–1995, the Gini ratio increased by an average of 9 points for all former socialist countries. The economic shocks that accompanied wholesale privatization were associated with sharp increases in mortality. Data shows Russia, Kazakhstan, Latvia, Lithuania and Estonia saw a tripling of unemployment and a 42% increase in male death rates between 1991 and 1994. In the following decades, only five or six of the post-communist states are on a path to joining the wealthy capitalist West while most are falling behind, some to such an extent that it will take over fifty years to catch up to where they were before the fall of the Soviet Bloc. In summing up the international ramifications of these events, Vladislav Zubok stated: ‘The collapse of the Soviet empire was an event of epochal geopolitical, military, ideological, and economic significance.’ Before the dissolution, the country had maintained its status as one of the world's two superpowers for four decades after World War II through its hegemony in Eastern Europe, military strength, economic strength, aid to
developing countries A developing country is a sovereign state with a lesser developed Industrial sector, industrial base and a lower Human Development Index (HDI) relative to other countries. However, this definition is not universally agreed upon. There is al ...
, and scientific research, especially in space technology and weaponry.


Post-Soviet states

The analysis of the succession of states for the 15
post-Soviet states The post-Soviet states, also known as the former Soviet Union (FSU), the former Soviet Republics and in Russia as the near abroad (russian: links=no, ближнее зарубежье, blizhneye zarubezhye), are the 15 sovereign states that wer ...
is complex. The Russian Federation is seen as the legal ''continuator'' state and is for most purposes the heir to the Soviet Union. It retained ownership of all former Soviet embassy properties, and also inherited the Soviet Union's UN membership, with its permanent seat on the United Nations Security Council, Security Council. Of the two other co-founding states of the USSR at the time of the dissolution,
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian invas ...
was the only one that had passed laws, similar to Russia, that it is a state-successor of both the Ukrainian SSR and the USSR. Soviet treaties laid groundwork for Ukraine's future foreign agreements as well as they led to Ukraine agreeing to undertake 16.37% of debts of the Soviet Union for which it was going to receive its share of USSR's foreign property. Although it had a tough position at the time, due to Russia's position as a ‘single continuation of the USSR’ that became widely accepted in the West as well as a constant pressure from the Western countries, allowed Russia to dispose state property of USSR abroad and conceal information about it. Due to that Ukraine never ratified ‘zero option’ agreement that Russian Federation had signed with other former Soviet republics, as it denied disclosing of information about Soviet Gold Reserves and its Diamond Fund. The dispute over former Soviet property and assets between the two former republics is still ongoing: Similar situation occurred with restitution of cultural property. Although on 14 February 1992 Russia and other former Soviet republics signed agreement ‘On the return of cultural and historic property to the origin states’ in
Minsk Minsk ( be, Мінск ; russian: Минск) is the capital and the largest city of Belarus, located on the Svislach (Berezina), Svislach and the now subterranean Nyamiha, Niamiha rivers. As the capital, Minsk has a special administrative stat ...
, it was halted by Russian State Duma that had eventually passed ‘Russian cultural property law, Federal Law on Cultural Valuables Displaced to the USSR as a Result of the Second World War and Located on the Territory of the Russian Federation’ which made restitution currently impossible. Estonia, Latvia, and Lithuania consider themselves as State continuity of the Baltic states, revivals of the three independent countries that existed prior to their occupation and annexation by the Soviet Union in 1940. They maintain that the process by which they were incorporated into the Soviet Union violated both international law and their own law, and that in 1990–1991 they were reasserting an independence that still legally existed. There are additionally six states that claim independence from the other internationally recognized post-Soviet states but List of states with limited recognition, possess limited international recognition: Abkhazia, Republic of Artsakh, Artsakh, Donetsk People's Republic, Donetsk, Luhansk People's Republic, Luhansk, South Ossetia and Transnistria. The Chechnya, Chechen separatist movement of the Chechen Republic of Ichkeria, the Gagauzia, Gagauz separatist movement of the Gagauz Republic and the Talysh people, Talysh separatist movement of the Talysh-Mughan Autonomous Republic lack any international recognition.


Foreign relations

During his rule, Stalin always made the final policy decisions. Otherwise, Soviet foreign policy was set by the commission on the Foreign Policy of the Central Committee of the Communist Party of the Soviet Union, or by the party's highest body the Politburo of the Communist Party of the Soviet Union, Politburo. Operations were handled by the separate Ministry of Foreign Affairs (Soviet Union), Ministry of Foreign Affairs. It was known as the People's Commissariat for Foreign Affairs (or Narkomindel), until 1946. The most influential spokesmen were Georgy Chicherin (1872–1936), Maxim Litvinov (1876–1951), Vyacheslav Molotov (1890–1986), Andrey Vyshinsky (1883–1954) and Andrei Gromyko (1909–1989). Intellectuals were based in the Moscow State Institute of International Relations. * Comintern (1919–1943), or Communist International, was an international communist organization based in the Kremlin that advocated world communism. The Comintern intended to ‘struggle by all available means, including armed force, for the overthrow of the international bourgeoisie and the creation of an international Soviet republic as a transition stage to the complete abolition of the state’. It was abolished as a conciliatory measure toward Britain and the United States. *
Comecon The Council for Mutual Economic Assistance (, ; English abbreviation COMECON, CMEA, CEMA, or CAME) was an economic organization from 1949 to 1991 under the leadership of the Soviet Union that comprised the countries of the Eastern Bloc along wi ...
, the Council for Mutual Economic Assistance (Russian: Совет Экономической Взаимопомощи, ''Sovet Ekonomicheskoy Vzaimopomoshchi'', СЭВ, SEV) was an economic organization from 1949 to 1991 under Soviet control that comprised the countries of the Eastern Bloc along with several communist states elsewhere in the world. Moscow was concerned about the Marshall Plan, and Comecon was meant to prevent countries in the Soviets' sphere of influence from moving towards that of the Americans and Southeast Asia. Comecon was the Eastern Bloc's reply to the formation in Western Europe of the Organization for European Economic Co-Operation (OEEC),"Germany (East)", Library of Congress Country Study
Appendix B: The Council for Mutual Economic Assistance
* The
Warsaw Pact The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republi ...
was a collective defence alliance formed in 1955 among the USSR and its
satellite state A satellite state or dependent state is a country that is formally independent in the world, but under heavy political, economic, and military influence or control from another country. The term was coined by analogy to planetary objects orbitin ...
s in Eastern Europe during the Cold War. The Warsaw Pact was the military complement to the Comecon, the regional economic organization for the
socialist state A socialist state, socialist republic, or socialist country, sometimes referred to as a workers' state or workers' republic, is a sovereign state constitutionally dedicated to the establishment of socialism. The term ''communist state'' is ofte ...
s of Central and Eastern Europe. The Warsaw Pact was created in reaction to the integration of West Germany into
NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...
. * The Cominform (1947–1956), informally the Communist Information Bureau and officially the Information Bureau of the Communist and Workers' Parties, was the first official agency of the international Marxist-Leninist movement since the dissolution of the Comintern in 1943. Its role was to coordinate actions between Marxist-Leninist parties under Soviet direction. Stalin used it to order Western European communist parties to abandon their exclusively parliamentarian line and instead concentrate on politically impeding the operations of the Marshall Plan. It also coordinated international aid to Marxist-Leninist insurgents during the Greek Civil War in 1947–1949. It expelled Yugoslavia in 1948 after Josip Broz Tito insisted on an independent program. Its newspaper, ''For a Lasting Peace, for a People's Democracy!'', promoted Stalin's positions. The Cominform's concentration on Europe meant a deemphasis on world revolution in Soviet foreign policy. By enunciating a uniform ideology, it allowed the constituent parties to focus on personalities rather than issues.


Early policies (1919–1939)

The Marxist-Leninist leadership of the Soviet Union intensely debated foreign policy issues and changed directions several times. Even after Stalin assumed dictatorial control in the late 1920s, there were debates, and he frequently changed positions. During the country's early period, it was assumed that Communist revolutions would break out soon in every major industrial country, and it was the Soviet responsibility to assist them. The Communist International, Comintern was the weapon of choice. A few revolutions did break out, but they were quickly suppressed (the longest lasting one was in Hungary)—the Hungarian Soviet Republic—lasted only from 21 March 1919 to 1 August 1919. The Russian Bolsheviks were in no position to give any help. By 1921, Lenin, Trotsky, and Stalin realized that capitalism had stabilized itself in Europe and there would not be any widespread revolutions anytime soon. It became the duty of the Russian Bolsheviks to protect what they had in Russia, and avoid military confrontations that might destroy their bridgehead. Russia was now a pariah state, along with Germany. The two came to terms in 1922 with the Treaty of Rapallo, 1922, Treaty of Rapallo that settled long-standing grievances. At the same time, the two countries secretly set up training programs for the illegal German army and air force operations at hidden camps in the USSR. Moscow eventually stopped threatening other states, and instead worked to open peaceful relationships in terms of trade, and diplomatic recognition. The United Kingdom dismissed the warnings of Winston Churchill and a few others about a continuing Marxist-Leninist threat, and opened trade relations and ''de facto'' diplomatic recognition in 1922. There was hope for a settlement of the pre-war Tsarist debts, but it was repeatedly postponed. Formal recognition came when the new Labour Party (UK), Labour Party came to power in 1924. All the other countries followed suit in opening trade relations. Henry Ford opened large-scale business relations with the Soviets in the late 1920s, hoping that it would lead to long-term peace. Finally, in 1933, the United States officially recognized the USSR, a decision backed by the public opinion and especially by US business interests that expected an opening of a new profitable market. In the late 1920s and early 1930s, Stalin ordered Marxist-Leninist parties across the world to strongly oppose non-Marxist political parties, labor unions or other organizations on the left. Stalin reversed himself in 1934 with the Popular Front program that called on all Marxist parties to join with all Anti-fascism, anti-Fascist political, labor, and organizational forces that were opposed to fascism, especially of the Nazism, Nazi variety. In 1939, half a year after the
Munich Agreement The Munich Agreement ( cs, Mnichovská dohoda; sk, Mníchovská dohoda; german: Münchner Abkommen) was an agreement concluded at Munich on 30 September 1938, by Germany, the United Kingdom, France, and Italy. It provided "cession to Germany ...
, the USSR attempted to form an anti-Nazi alliance with France and Britain. Adolf Hitler proposed a better deal, which would give the USSR control over much of Eastern Europe through the
Molotov–Ribbentrop Pact The Molotov–Ribbentrop Pact was a non-aggression pact between Nazi Germany and the Soviet Union that enabled those powers to partition Poland between them. The pact was signed in Moscow on 23 August 1939 by German Foreign Minister Joachim von Ri ...
. In September, Germany invaded Poland, and the USSR also invaded later that month, resulting in the partition of Poland. In response, Britain and France declared war on Germany, marking the beginning of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
.


World War II (1939–1945)

Up until his death in 1953,
Joseph Stalin Joseph Vissarionovich Stalin (born Ioseb Besarionis dze Jughashvili; – 5 March 1953) was a Georgian revolutionary and Soviet political leader who led the Soviet Union from 1924 until his death in 1953. He held power as General Secreta ...
controlled all foreign relations of the Soviet Union during the interwar period. Despite the increasing build-up of Nazi Germany, Germany's war machine and the outbreak of the Second Sino-Japanese War, the Soviet Union did not cooperate with any other nation, choosing to follow its own path. However, after Operation Barbarossa, the Soviet Union's priorities changed. Despite previous conflict with the United Kingdom, Vyacheslav Molotov dropped his post war border demands.


Cold War (1945–1991)

The Cold War was a period of geopolitical tension between the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
and the Soviet Union and their respective allies, the
Western Bloc The Western Bloc, also known as the Free Bloc, the Capitalist Bloc, the American Bloc, and the NATO Bloc, was a coalition of countries that were officially allied with the United States during the Cold War of 1947–1991. It was spearheaded b ...
and the
Eastern Bloc The Eastern Bloc, also known as the Communist Bloc and the Soviet Bloc, was the group of socialist states of Central and Eastern Europe, East Asia, Southeast Asia, Africa, and Latin America under the influence of the Soviet Union that existed du ...
, which began following
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
in 1945. The term ''Cold war (general term), cold war'' is used because there was no large-scale fighting directly between the two superpowers, but they each supported major regional conflicts known as
proxy war A proxy war is an armed conflict between two states or non-state actors, one or both of which act at the instigation or on behalf of other parties that are not directly involved in the hostilities. In order for a conflict to be considered a pr ...
s. The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary Allies of World War II, alliance and Allied-occupied Germany, victory against
Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
in 1945. Aside from the Nuclear arms race, nuclear arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as psychological warfare, propaganda campaigns, Cold War espionage, espionage, far-reaching Economic sanctions, embargoes, rivalry at sports events and technological competitions such as the
Space Race The Space Race was a 20th-century competition between two Cold War rivals, the United States and the Soviet Union, to achieve superior spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the ...
.


Politics

There were three power hierarchies in the Soviet Union: the legislature represented by the Supreme Soviet of the Soviet Union, the government represented by the Council of Ministers of the Soviet Union, Council of Ministers, and the Communist Party of the Soviet Union (CPSU), the only legal party and the final policymaker in the country.Sakwa, Richard. ''Soviet Politics in Perspective''. 2nd ed. London – N.Y.: Routledge, 1998.


Communist Party

At the top of the Communist Party was the Central Committee, elected at Congress of the Communist Party of the Soviet Union, Party Congresses and Conferences. In turn, the Central Committee voted for a Politburo of the Communist Party of the Soviet Union, Politburo (called the Presidium between 1952 and 1966), Secretariat of the Communist Party of the Soviet Union, Secretariat and the General Secretary of the Communist Party of the Soviet Union, general secretary (First Secretary from 1953 to 1966), the ''de facto'' highest office in the Soviet Union. Depending on the degree of power consolidation, it was either the Politburo as a collective body or the General Secretary, who always was one of the Politburo members, that effectively led the party and the country (except for the period of the highly personalized authority of Stalin, exercised directly through his position in the Council of Ministers rather than the Politburo after 1941). They were not controlled by the general party membership, as the key principle of the party organization was
democratic centralism Democratic centralism is a practice in which political decisions reached by voting processes are binding upon all members of the political party. It is mainly associated with Leninism, wherein the party's political vanguard of professional revol ...
, demanding strict subordination to higher bodies, and elections went uncontested, endorsing the candidates proposed from above. The Communist Party maintained its dominance over the state mainly through its control over the Nomenklatura, system of appointments. All senior government officials and most deputies of the Supreme Soviet were members of the CPSU. Of the party heads themselves, Stalin (1941–1953) and Khrushchev (1958–1964) were Premiers. Upon the forced retirement of Khrushchev, the party leader was prohibited from this kind of double membership, but the later General Secretaries for at least some part of their tenure occupied the mostly ceremonial position of List of heads of state of the Soviet Union, Chairman of the Presidium of the Supreme Soviet, the nominal List of heads of state of the Soviet Union, head of state. The institutions at lower levels were overseen and at times supplanted by Kraikom, primary party organizations. However, in practice the degree of control the party was able to exercise over the state bureaucracy, particularly after the death of Stalin, was far from total, with the bureaucracy pursuing different interests that were at times in conflict with the party. Nor was the party itself monolithic from top to bottom, although Ban on factions in the Communist Party of the Soviet Union, factions were officially banned.


Government

The Supreme Soviet of the Soviet Union, Supreme Soviet (successor of the Congress of Soviets of the Soviet Union, Congress of Soviets) was nominally the highest state body for most of the Soviet history, at first acting as a rubber stamp institution, approving and implementing all decisions made by the party. However, its powers and functions were extended in the late 1950s, 1960s and 1970s, including the creation of new state commissions and committees. It gained additional powers relating to the approval of the
Five-Year Plans Five-year plan may refer to: Nation plans *Five-year plans of the Soviet Union, a series of nationwide centralized economic plans in the Soviet Union * Five-Year Plans of Argentina *Five-Year Plans of Bhutan, a series of national economic develop ...
and the government budget. The Supreme Soviet elected a Presidium of the Supreme Soviet, Presidium (successor of the Central Executive Committee of the Soviet Union, Central Executive Committee) to wield its power between plenary sessions, ordinarily held twice a year, and appointed the Supreme Court of the Soviet Union, Supreme Court, the Procurator General of the Soviet Union, Procurator General and the Council of Ministers of the Soviet Union, Council of Ministers (known before 1946 as the Council of People's Commissars of the Soviet Union, Council of People's Commissars), headed by the Premier of the Soviet Union, Chairman (Premier) and managing an enormous bureaucracy responsible for the administration of the economy and society. State and party structures of the Republics of the Soviet Union, constituent republics largely emulated the structure of the central institutions, although the Russian SFSR, unlike the other constituent republics, for most of its history had no republican branch of the CPSU, being ruled directly by the union-wide party until 1990. Local authorities were organized likewise into Raikom, party committees, Soviet (council), local Soviets and executive committees. While the state system was nominally federal, the party was unitary. The state security police (the KGB and :Template:Chronology of Soviet secret police agencies, its predecessor agencies) played an important role in Soviet politics. It was instrumental in the
Great Purge The Great Purge or the Great Terror (russian: Большой террор), also known as the Year of '37 (russian: 37-й год, translit=Tridtsat sedmoi god, label=none) and the Yezhovshchina ('period of Yezhov'), was Soviet General Secreta ...
, but was brought under strict party control after Stalin's death. Under
Yuri Andropov Yuri Vladimirovich Andropov (– 9 February 1984) was the sixth paramount leader of the Soviet Union and the fourth General Secretary of the Communist Party of the Soviet Union. After Leonid Brezhnev's 18-year rule, Andropov served in the po ...
, the KGB engaged in the suppression of political dissent and maintained an extensive network of informers, reasserting itself as a political actor to some extent independent of the party-state structure, culminating in the anti-corruption campaign targeting high-ranking party officials in the late 1970s and early 1980s.


Separation of power and reform

The Constitution of the Soviet Union, constitution, which was promulgated in 1924 Soviet Constitution, 1924,
1936 Events January–February * January 20 – George V of the United Kingdom and the British Dominions and Emperor of India, dies at his Sandringham Estate. The Prince of Wales succeeds to the throne of the United Kingdom as King E ...
and 1977 Soviet Constitution, 1977, did not limit state power. No formal separation of powers existed between the Party, Supreme Soviet and Council of Ministers that represented executive and Legislature, legislative branches of the government. The system was governed less by statute than by informal conventions, and no settled mechanism of leadership succession existed. Bitter and at times deadly power struggles took place in the Politburo after the deaths of Lenin and Stalin, as well as after Khrushchev's dismissal, itself due to a decision by both the Politburo and the Central Committee. All leaders of the Communist Party before Gorbachev died in office, except
Georgy Malenkov Georgy Maximilianovich Malenkov ( – 14 January 1988) was a Soviet politician who briefly succeeded Joseph Stalin as the leader of the Soviet Union. However, at the insistence of the rest of the Presidium, he relinquished control over the p ...
and Khrushchev, both dismissed from the party leadership amid internal struggle within the party. Between 1988 and 1990, facing considerable opposition, Mikhail Gorbachev enacted reforms shifting power away from the highest bodies of the party and making the Supreme Soviet less dependent on them. The Congress of People's Deputies of the Soviet Union, Congress of People's Deputies was established, the majority of whose members were directly elected in competitive elections held in March 1989. The Congress now elected the Supreme Soviet, which became a full-time parliament, and much stronger than before. For the first time since the 1920s, it refused to rubber stamp proposals from the party and Council of Ministers. In 1990, Gorbachev introduced and assumed the position of the President of the Soviet Union, concentrated power in his executive office, independent of the party, and subordinated the government, now renamed the Cabinet of Ministers (Soviet Union), Cabinet of Ministers of the USSR, to himself. Tensions grew between the Union-wide authorities under Gorbachev, reformists led in Russia by
Boris Yeltsin Boris Nikolayevich Yeltsin ( rus, Борис Николаевич Ельцин, p=bɐˈrʲis nʲɪkɐˈla(j)ɪvʲɪtɕ ˈjelʲtsɨn, a=Ru-Boris Nikolayevich Yeltsin.ogg; 1 February 1931 – 23 April 2007) was a Soviet and Russian politician wh ...
and controlling the newly elected Supreme Soviet of Russia, Supreme Soviet of the Russian SFSR, and communist hardliners. On 19–21 August 1991, a group of hardliners staged a 1991 Soviet coup d'état attempt, coup attempt. The coup failed, and the State Council of the Soviet Union became the highest organ of state power ‘in the period of transition’. Gorbachev resigned as General Secretary, only remaining President for the final months of the existence of the USSR.


Judicial system

The judiciary was not independent of the other branches of government. The Supreme Court of the Soviet Union, Supreme Court supervised the lower courts (People's Court (Soviet Union), People's Court) and applied the law as established by the constitution or as interpreted by the Supreme Soviet. The Constitutional Oversight Committee reviewed the constitutionality of laws and acts. The Soviet Union used the inquisitorial system of Roman law, where the judge, Procurator General of the Soviet Union, procurator, and defence attorney collaborate to establish the truth.


Administrative divisions

Constitutionally, the USSR was a federation of constituent Union Republics, which were either unitary states, such as Ukrainian Soviet Socialist Republic, Ukraine or Byelorussian Soviet Socialist Republic, Byelorussia (SSRs), or federations, such as Russian Soviet Federative Socialist Republic, Russia or Transcaucasian Socialist Federative Soviet Republic, Transcaucasia (SFSRs), all four being the founding republics who signed the Treaty on the Creation of the USSR in December 1922. In 1924, during the National delimitation in the Soviet Union, national delimitation in Central Asia, Uzbek Soviet Socialist Republic, Uzbekistan and Turkmen Soviet Socialist Republic, Turkmenistan were formed from parts of Russia's Turkestan Autonomous Soviet Socialist Republic, Turkestan ASSR and two Soviet dependencies, the Khorezm People's Soviet Republic, Khorezm and Bukharan People's Soviet Republic, Bukharan SSRs. In 1929, Tajik Soviet Socialist Republic, Tajikistan was split off from the Uzbekistan SSR. With the constitution of 1936, the Transcaucasian SFSR was dissolved, resulting in its constituent republics of
Armenia Armenia (), , group=pron officially the Republic of Armenia,, is a landlocked country in the Armenian Highlands of Western Asia.The UNbr>classification of world regions places Armenia in Western Asia; the CIA World Factbook , , and ...
,
Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to t ...
and Azerbaijan Soviet Socialist Republic, Azerbaijan being elevated to Union Republics, while Kazakh Soviet Socialist Republic, Kazakhstan and Kirghiz Soviet Socialist Republic, Kirghizia were split off from Russian SFSR, resulting in the same status. In August 1940, Moldavian Soviet Socialist Republic, Moldavia was formed from parts of Ukraine and Soviet occupation of Bessarabia and northern Bukovina, Bessarabia and Ukrainian SSR.
Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, and t ...
,
Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...
and Lithuania (SSRs) were also Soviet occupation of the Baltic states (1940), admitted into the union which was State continuity of the Baltic states, not recognized by most of the international community and was considered an Occupation of the Baltic states, illegal occupation. Karelo-Finnish Soviet Socialist Republic, Karelia was split off from Russia as a Union Republic in March 1940 and was reabsorbed in 1956. Between July 1956 and September 1991, there were 15 union republics (see map below). While nominally a union of equals, in practice the Soviet Union was dominated by Russians. The domination was so absolute that for most of its existence, the country was commonly (but incorrectly) referred to as ‘Russia’. While the RSFSR was technically only one republic within the larger union, it was by far the largest (both in terms of population and area), most powerful, and most highly developed. The RSFSR was also the industrial center of the Soviet Union. Historian Matthew White wrote that it was an open secret that the country's federal structure was ‘window dressing’ for Russian dominance. For that reason, the people of the USSR were usually called ‘Russians’, not ‘Soviets’, since ‘everyone knew who really ran the show’.


Military

Under the Military Law of September 1925, the
Soviet Armed Forces The Soviet Armed Forces, the Armed Forces of the Soviet Union and as the Red Army (, Вооружённые Силы Советского Союза), were the armed forces of the Russian SFSR (1917–1922), the Soviet Union (1922–1991), and th ...
consisted of the Soviet Army, Land Forces, the Soviet Air Forces, Air Force, the Soviet Navy, Navy, Joint State Political Directorate (OGPU), and the Internal Troops. The OGPU later became independent and in 1934 joined the
NKVD The People's Commissariat for Internal Affairs (russian: Наро́дный комиссариа́т вну́тренних дел, Naródnyy komissariát vnútrennikh del, ), abbreviated NKVD ( ), was the interior ministry of the Soviet Union. ...
, and so its internal troops were under the joint leadership of the defense and internal commissariats. After World War II, Strategic Missile Forces (1959), Soviet Air Defence Forces, Air Defense Forces (1948) and National Civil Defense Forces (1970) were formed, which ranked first, third, and sixth in the official Soviet system of importance (ground forces were second, Air Force Fourth, and Navy Fifth). The army had the greatest political influence. In 1989, there served two million soldiers divided between 150 motorized and 52 armored divisions. Until the early 1960s, the Soviet navy was a rather small military branch, but after the Caribbean crisis, under the leadership of Sergei Gorshkov, it expanded significantly. It became known for battlecruisers and submarines. In 1989 there served 500 000 men. The Soviet Air Force focused on a fleet of strategic bombers and during war situation was to eradicate enemy infrastructure and nuclear capacity. The air force also had a number of Fighter aircraft, fighters and tactical bombers to support the army in the war. Strategic missile forces had more than 1,400 intercontinental ballistic missiles (ICBMs), deployed between 28 bases and 300 command centers. In the post-war period, the Soviet Army was directly involved in several military operations abroad. These included the suppression of the East German uprising of 1953, uprising in East Germany (1953), Hungarian Revolution of 1956, Hungarian revolution (1956) and the Warsaw Pact invasion of Czechoslovakia, invasion of Czechoslovakia (1968). The Soviet Union also participated in the Soviet–Afghan War, war in Afghanistan between 1979 and 1989. In the Soviet Union, general conscription applied.


Space program

At the end of the 1950s, the USSR constructed the first satellite – Sputnik 1, which marked the beginning of the