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, 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 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 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, 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’ 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 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, 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 1945
[Denunciation of the neutrality pact](_blank)
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](_blank)
, 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, 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'' 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
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
Sąjūdis (, "Movement"), initially known as the Reform Movement of Lithuania ( lt, Lietuvos Persitvarkymo Sąjūdis), is the political organisation which led the struggle for Lithuanian independence in the late 1980s and early 1990s. It was e ...
in Lithuania, that country declared its independence restored on 11 March 1990.

A
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
New Union Treaty
The New Union Treaty (russian: link=no, Новый союзный договор, Novyy soyuznyy dogovor) was a draft treaty that would have replaced the 1922 Treaty on the Creation of the USSR to salvage and reform the Soviet Union. A ceremony ...
, 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
August Coup
August is the eighth month of the year in the Julian and Gregorian calendars, and the fifth of seven months to have a length of 31 days. Its zodiac sign is Leo and was originally named '' Sextilis'' in Latin because it was the 6th month in t ...
—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
The president of the Russian Federation ( rus, Президент Российской Федерации, Prezident Rossiyskoy Federatsii) is the head of state of the Russian Federation. The president leads the executive branch of the federal ...
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
Kazakhstan
Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia
Russia (, , ), or the Russian Federation, is a transcontinental coun ...
had formally declared independence. During this time, Yeltsin took over what remained of the Soviet government, including the
Moscow Kremlin
The Kremlin ( rus, Московский Кремль, r=Moskovskiy Kreml', p=ˈmɐˈskofskʲɪj krʲemlʲ, t=Moscow Kremlin) is a fortified complex in the center of Moscow founded by the Rurik dynasty. It is the best known of the kremlins (R ...
. The final blow was struck on 1 December when Ukraine, the second-most powerful republic,
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
The Belovezh Accords ( be, Белавежскае пагадненне, link=no, russian: Беловежские соглашения, link=no, uk, Біловезькі угоди, link=no) are accords forming the agreement declaring that the ...
, which declared the Soviet Union dissolved and established the
Commonwealth of Independent States
The Commonwealth of Independent States (CIS) is a regional intergovernmental organization in Eurasia. It was formed following the dissolution of the Soviet Union in 1991. It covers an area of and has an estimated population of 239,796,010. ...
(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
Russian tricolour was raised in its place.
The following day, the
Supreme Soviet
The Supreme Soviet (russian: Верховный Совет, Verkhovny Sovet, Supreme Council) was the common name for the legislative bodies (parliaments) of the Soviet socialist republics (SSR) in the Union of Soviet Socialist Republics (USS ...
, 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 recognized
[Country Profile: Russia](_blank)
Foreign & Commonwealth Office of the United Kingdom. as its
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
The Lisbon Protocol to the 1991 Strategic Arms Reduction Treaty was a document signed by representatives of Russia, Belarus, Ukraine, and Kazakhstan that recognized the four states as successors of the Union of Soviet Socialist Republics and all ...
, 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
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
Privatization (also privatisation in British English) can mean several different things, most commonly referring to moving something from the public sector into the private sector. It is also sometimes used as a synonym for deregulation when ...
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
Succession of states is a concept in international relations regarding a successor state that has become a sovereign state over a territory (and populace) that was previously under the sovereignty of another state. The theory has its roots in 19th- ...
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
Security Council
The United Nations Security Council (UNSC) is one of the six principal organs of the United Nations (UN) and is charged with ensuring international peace and security, recommending the admission of new UN members to the General Assembly, an ...
.
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
The Ukrainian Soviet Socialist Republic ( uk, Украї́нська Радя́нська Соціалісти́чна Респу́бліка, ; russian: Украи́нская Сове́тская Социалисти́ческая Респ ...
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 ‘
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
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
possess limited international recognition:
Abkhazia
Abkhazia, ka, აფხაზეთი, tr, , xmf, აბჟუა, abzhua, or ( or ), officially the Republic of Abkhazia, is a partially recognised state in the South Caucasus, recognised by most countries as part of Georgia, which v ...
,
Artsakh,
Donetsk
Donetsk ( , ; uk, Донецьк, translit=Donets'k ; russian: Донецк ), formerly known as Aleksandrovka, Yuzivka (or Hughesovka), Stalin and Stalino (see also: cities' alternative names), is an industrial city in eastern Ukraine loc ...
,
Luhansk
Luhansk (, ; uk, Луганськ, ), also known as Lugansk (, ; russian: Луганск, ), is a city in what is internationally recognised as Ukraine, although it is administered by Russia as capital of the Luhansk People's Republic (LPR). ...
,
South Ossetia
South Ossetia, ka, სამხრეთი ოსეთი, ( , ), officially the Republic of South Ossetia – the State of Alania, is a partially recognised landlocked state in the South Caucasus. It has an officially stated popula ...
and
Transnistria
Transnistria, officially the Pridnestrovian Moldavian Republic (PMR), is an unrecognised breakaway state that is internationally recognised as a part of Moldova. Transnistria controls most of the narrow strip of land between the Dniester riv ...
. The
Chechen separatist movement of the
Chechen Republic of Ichkeria
The Chechen Republic of Ichkeria (; ce, Нохчийн Республик Ичкери, Nóxçiyn Respublik Içkeri; russian: Чеченская Республика Ичкерия; abbreviated as "ChRI" or "CRI") was a ''de facto'' state tha ...
, the
Gagauz separatist movement of the
Gagauz Republic and the
Talysh separatist movement of the
Talysh-Mughan Autonomous Republic
Talysh-Mughan, officially known as the Talysh-Mughan Autonomous Republic ( Talysh: Толъш-Мъғонә Мохтарә Республикә, ''Tolış-Mığonə Muxtara Respublika''), was a short-lived autonomous republic in Azerbaijan that l ...
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
A politburo () or political bureau is the executive committee for communist parties. It is present in most former and existing communist states.
Names
The term "politburo" in English comes from the Russian ''Politbyuro'' (), itself a contractio ...
. Operations were handled by the separate
Ministry of Foreign Affairs In many countries, the Ministry of Foreign Affairs is the government department responsible for the state's diplomacy, bilateral, and multilateral relations affairs as well as for providing support for a country's citizens who are abroad. The enti ...
. It was known as the People's Commissariat for Foreign Affairs (or Narkomindel), until 1946. The most influential spokesmen were
Georgy Chicherin
Georgy Vasilyevich Chicherin (24 November 1872 – 7 July 1936), also spelled Tchitcherin, was a Russian Marxist revolutionary and a Soviet politician who served as the first People's Commissar for Foreign Affairs in the Soviet government from ...
(1872–1936),
Maxim Litvinov
Maxim Maximovich Litvinov (; born Meir Henoch Wallach; 17 July 1876 – 31 December 1951) was a Russian revolutionary and prominent Soviet statesman and diplomat.
A strong advocate of diplomatic agreements leading towards disarmament, Litvinov ...
(1876–1951),
Vyacheslav Molotov
Vyacheslav Mikhaylovich Molotov. ; (;. 9 March O. S. 25 February">Old_Style_and_New_Style_dates.html" ;"title="nowiki/>Old Style and New Style dates">O. S. 25 February1890 – 8 November 1986) was a Russian politician and diplomat, an Old Bol ...
(1890–1986),
Andrey Vyshinsky
Andrey Yanuaryevich Vyshinsky (russian: Андре́й Януа́рьевич Выши́нский; pl, Andrzej Wyszyński) ( – 22 November 1954) was a Soviet politician, jurist and diplomat.
He is known as a state prosecutor of Josep ...
(1883–1954) and
Andrei Gromyko
Andrei Andreyevich Gromyko (russian: Андрей Андреевич Громыко; be, Андрэй Андрэевіч Грамыка; – 2 July 1989) was a Soviet communist politician and diplomat during the Cold War. He served a ...
(1909–1989). Intellectuals were based in the
.
* Comintern (1919–1943), or
Communist International
The Communist International (Comintern), also known as the Third International, was a Soviet-controlled international organization founded in 1919 that advocated world communism. The Comintern resolved at its Second Congress to "struggle by ...
, was an international communist organization based in the Kremlin that advocated
world communism
World communism, also known as global communism, is the ultimate form of communism which of necessity has a universal or global scope. The long-term goal of world communism is an unlimited worldwide communist society that is classless (lacking ...
. 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
The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred over $13 billion (equivalent of about $ in ) in economic re ...
, 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
West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 O ...
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
The Information Bureau of the Communist and Workers' Parties (), commonly known as Cominform (), was a co-ordination body of Marxist-Leninist communist parties in Europe during the early Cold War that was formed in part as a replacement of the ...
(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
Josip Broz ( sh-Cyrl, Јосип Броз, ; 7 May 1892 – 4 May 1980), commonly known as Tito (; sh-Cyrl, Тито, links=no, ), was a Yugoslav communist revolutionary and statesman, serving in various positions from 1943 until his deat ...
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
Comintern
The Communist International (Comintern), also known as the Third International, was a Soviet Union, Soviet-controlled international organization founded in 1919 that advocated world communism. The Comintern resolved at its Second Congress to ...
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
The Socialist Federative Republic of Councils in Hungary ( hu, Magyarországi Szocialista Szövetséges Tanácsköztársaság) (due to an early mistranslation, it became widely known as the Hungarian Soviet Republic in English-language sources ( ...
—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 Following World War I there were two Treaties of Rapallo, both named after Rapallo, a resort on the Ligurian coast of Italy:
* Treaty of Rapallo, 1920, an agreement between Italy and the Kingdom of the Serbs, Croats and Slovenes (the later Yugosla ...
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 came to power in 1924. All the other countries followed suit in opening trade relations.
Henry Ford
Henry Ford (July 30, 1863 – April 7, 1947) was an American Technological and industrial history of the United States, industrialist, business magnate, founder of the Ford Motor Company, and chief developer of the assembly line technique of ...
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
A popular front is "any coalition of working-class and middle-class parties", including liberal and social democratic ones, "united for the defense of democratic forms" against "a presumed Fascist assault".
More generally, it is "a coalitio ...
program that called on all Marxist parties to join with all
anti-Fascist
Anti-fascism is a political movement in opposition to fascist ideologies, groups and individuals. Beginning in European countries in the 1920s, it was at its most significant shortly before and during World War II, where the Axis powers were ...
political, labor, and organizational forces that were opposed to
fascism
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 th ...
, especially of the
Nazi
Nazism ( ; german: Nazismus), the common name in English for National Socialism (german: Nationalsozialismus, ), is the far-right politics, far-right Totalitarianism, totalitarian political ideology and practices associated with Adolf Hit ...
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
Adolf Hitler (; 20 April 188930 April 1945) was an Austrian-born German politician who was dictator of Nazi Germany, Germany from 1933 until Death of Adolf Hitler, his death in 1945. Adolf Hitler's rise to power, He rose to power as the le ...
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
Germany
Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...
's war machine and the outbreak of the
Second Sino-Japanese War
The Second Sino-Japanese War (1937–1945) or War of Resistance (Chinese term) was a military conflict that was primarily waged between the Republic of China and the Empire of Japan. The war made up the Chinese theater of the wider Pacific Thea ...
, the Soviet Union did not cooperate with any other nation, choosing to follow its own path. However, after
Operation Barbarossa
Operation Barbarossa (german: link=no, Unternehmen Barbarossa; ) was the invasion of the Soviet Union by Nazi Germany and many of its Axis allies, starting on Sunday, 22 June 1941, during the Second World War. The operation, code-named afte ...
, the Soviet Union's priorities changed. Despite previous conflict with the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...
,
Vyacheslav Molotov
Vyacheslav Mikhaylovich Molotov. ; (;. 9 March O. S. 25 February">Old_Style_and_New_Style_dates.html" ;"title="nowiki/>Old Style and New Style dates">O. S. 25 February1890 – 8 November 1986) was a Russian politician and diplomat, an Old Bol ...
dropped his post war border demands.
Cold War (1945–1991)
The Cold War was a period of
geopolitical
Geopolitics (from Greek γῆ ''gê'' "earth, land" and πολιτική ''politikḗ'' "politics") is the study of the effects of Earth's geography (human and physical) on politics and international relations. While geopolitics usually refers to ...
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'' is used because there was no large-scale fighting directly between the two
superpowers
A superpower is a state with a dominant position characterized by its extensive ability to exert influence or project power on a global scale. This is done through the combined means of economic, military, technological, political and cultural s ...
, 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
alliance
An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
and
victory
The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitutes a ...
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 arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as
psychological warfare
Psychological warfare (PSYWAR), or the basic aspects of modern psychological operations (PsyOp), have been known by many other names or terms, including Military Information Support Operations ( MISO), Psy Ops, political warfare, "Hearts and ...
, propaganda campaigns,
espionage
Espionage, spying, or intelligence gathering is the act of obtaining secr