The borders of

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

changed through military conquests and by ideological and political unions from the 16th century.

Tsarist Russia

The formal end to

Tatar Tatar may refer to: Peoples * Tatars, an umbrella term for different Turkic ethnic groups bearing the name "Tatar" * Volga Tatars, a people from the Volga-Ural region of western Russia * Crimean Tatars, a people from the Crimea peninsula by the B ...

rule over Russia was the defeat of the Tatars at the Great Stand on the Ugra River in 1480.

Ivan III Ivan III Vasilyevich (; 22 January 1440 – 27 October 1505), also known as Ivan the Great, was Grand Prince of Moscow and all Russia from 1462 until his death in 1505. Ivan served as the co-ruler and regent for his blind father Vasily II be ...

() and

Vasili III Vasili III Ivanovich (; 25 March 14793 December 1533) was Grand Prince of Moscow and all Russia from 1505 until his death in 1533. He was the son of Ivan III and Sophia Paleologue and was christened with the name Gavriil (). Following on th ...

() had consolidated the centralized Russian state following the annexations of the

Novgorod Republic The Novgorod Republic () was a medieval state that existed from the 12th to 15th centuries in northern Russia, stretching from the Gulf of Finland in the west to the northern Ural Mountains in the east. Its capital was the city of Novgorod. The ...

in 1478,

Tver Tver (, ) is a types of inhabited localities in Russia, city and the administrative centre of Tver Oblast, Russia. It is situated at the confluence of the Volga and Tvertsa rivers. Tver is located northwest of Moscow. Population: The city is ...

in 1485, the

Pskov Republic The Pskov Republic () was a city-state in northwestern Russia. It is traditionally considered to have won its formal independence from the Novgorod Republic in 1348. Its capital city was Pskov and its territory was roughly equivalent to modern-d ...

in 1510,

Volokolamsk Volokolamsk () is a town and the administrative center of Volokolamsky District in Moscow Oblast, Russia, located on the Gorodenka River, not far from its confluence with the Lama River, northwest of Moscow. Population: 25,729 (2024 Estimate ...

in 1513,

Ryazan Ryazan (, ; also Riazan) is the largest types of inhabited localities in Russia, city and administrative center of Ryazan Oblast, Russia. The city is located on the banks of the Oka River in Central Russia, southeast of Moscow. As of the 2010 C ...

in 1521, and Novgorod-Seversk in 1522. After a period of political instability between 1598 and 1613, which became known as the

Time of Troubles The Time of Troubles (), also known as Smuta (), was a period of political crisis in Tsardom of Russia, Russia which began in 1598 with the death of Feodor I of Russia, Feodor I, the last of the Rurikids, House of Rurik, and ended in 1613 wit ...

, the

Romanovs The House of Romanov (also transliterated as Romanoff; , ) was the reigning imperial house of Russia from 1613 to 1917. They achieved prominence after Anastasia Romanovna married Ivan the Terrible, the first crowned tsar of all Russia. Nic ...

came to power in 1613 and the expansion-colonization process of the tsardom continued. While Western Europe colonized the New World, the

Tsardom of Russia The Tsardom of Russia, also known as the Tsardom of Moscow, was the centralized Russian state from the assumption of the title of tsar by Ivan the Terrible, Ivan IV in 1547 until the foundation of the Russian Empire by Peter the Great in 1721. ...

expanded overland – principally to the east, north and south. This continued for centuries; by the end of the 19th century, the

Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...

reached from the

Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the ...

, to the

Black Sea The Black Sea is a marginal sea, marginal Mediterranean sea (oceanography), mediterranean sea 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 bound ...

, to the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...

, and for some time included colonies in the

Americas The Americas, sometimes collectively called America, are a landmass comprising the totality of North America and South America.''Webster's New World College Dictionary'', 2010 by Wiley Publishing, Inc., Cleveland, Ohio. When viewed as a sing ...

(1732–1867) and an unofficial colony in Africa (1889) in present-day

Djibouti Djibouti, officially the Republic of Djibouti, is a country in the Horn of Africa, bordered by Somalia to the south, Ethiopia to the southwest, Eritrea in the north, and the Red Sea and the Gulf of Aden to the east. The country has an area ...

that lasted only a month.

Expansion into Asia

The first stage from 1582 to 1650 resulted in North-East expansion from the Urals to the Pacific. Geographical expeditions mapped much of

Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...

. The second stage from 1785 to 1830 looked South to the areas between the Black Sea and the Caspian Sea. The key areas were Armenia and Georgia, with some better penetration of the Ottoman Empire, and Persia. By 1829, Russia controlled all of the Caucasus as shown in the Treaty of Adrianople of 1829. The third era, 1850 to 1860, was a brief interlude jumping to the East Coast, annexing the region from the Amur River to Manchuria. The fourth era, 1865 to 1885 incorporated Turkestan, and the northern approaches to India, sparking British fears of a threat to India in the

Great Game The Great Game was a rivalry between the 19th-century British Empire, British and Russian Empire, Russian empires over influence in Central Asia, primarily in Emirate of Afghanistan, Afghanistan, Qajar Iran, Persia, and Tibet. The two colonia ...

. Historian Michael Khodarkovsky describes Tsarist Russia as a "hybrid empire" that combined elements of continental and colonial empires. According to Kazakh scholar Kereihan Amanzholov, Russian colonialism had "no essential difference with the colonialist policies of Britain, France, and other European powers". Qing China defeated Russia in the early

Sino-Russian border conflicts The Sino-Russian border conflicts (1652–1689) were a series of intermittent skirmishes between the Qing dynasty of China, with assistance from the Joseon dynasty of Korea, and the Tsardom of Russia by the Cossacks in which the latter tried a ...

, although the Russian Empire later acquired

Outer Manchuria Outer Manchuria, sometimes called Russian Manchuria, refers to a region in Northeast Asia that is now part of the Russian Far East but historically formed part of Manchuria (until the mid-19th century). While Manchuria now more normatively refer ...

in the

Amur Annexation Between 1858 and 1860, the Russian Empire annexed territories adjoining the Amur River belonging to the Chinese Qing dynasty through the imposition of unequal treaties. The 1858 Treaty of Aigun, signed by the general Nikolay Muravyov represent ...

through the 1858

Treaty of Aigun The Treaty of Aigun was an 1858 treaty between the Russian Empire and Yishan, official of the Qing dynasty of China. It established much of the modern border between the Russian Far East and China by ceding much of Manchuria (the ancestral h ...

from China. During the

Boxer Rebellion The Boxer Rebellion, also known as the Boxer Uprising, was an anti-foreign, anti-imperialist, and anti-Christian uprising in North China between 1899 and 1901, towards the end of the Qing dynasty, by the Society of Righteous and Harmonious F ...

, the Russian Empire invaded Manchuria in 1900, and the Blagoveshchensk massacre occurred against Chinese residents on the Russian side of the border. Russian Empire reached its maximum territory in Asia with the

Russo-Japanese War The Russo-Japanese War (8 February 1904 – 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and the Korean Empire. The major land battles of the war were fought on the ...

, where after its defeat, Russia ceded Manchuria, southern

Sakhalin Sakhalin ( rus, Сахали́н, p=səxɐˈlʲin) is an island in Northeast Asia. Its north coast lies off the southeastern coast of Khabarovsk Krai in Russia, while its southern tip lies north of the Japanese island of Hokkaido. An islan ...

Russian Dalian Russian Dalian, also known as Kvantunskaya Oblast, was a leased territory ruled by the Russian Empire that existed between its establishment after the Pavlov Agreement in 1898 and its annexation by the Empire of Japan after the Russo-Japanese W ...

, and Port Arthur to Japan with the

Treaty of Portsmouth The Treaty of Portsmouth is a treaty that formally ended the 1904–1905 Russo-Japanese War. It was signed on September 5, 1905, after negotiations from August 6 to 30, at the Portsmouth Naval Shipyard in Kittery, Maine, United States. U.S. P ...

, though Russia kept the northern portion of the

Chinese Eastern Railway The Chinese Eastern Railway or CER (, , or , ''Kitaysko-Vostochnaya Zheleznaya Doroga'' or ''KVZhD''), is the historical name for a railway system in Northeast China (also known as Manchuria). The Russian Empire constructed the line from 1897 ...

Table of changes

Changes in territory to the

and

, from 1547 to 1905, listed chronologically:

Russian SFSR and Soviet Union

After the

October Revolution The October Revolution, also known as the Great October Socialist Revolution (in Historiography in the Soviet Union, Soviet historiography), October coup, Bolshevik coup, or Bolshevik revolution, was the second of Russian Revolution, two r ...

of November 1917,

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

and

Finland Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It borders Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland to the south, ...

became independent from Russia and remained so thereafter. The Russian Empire ceased to exist, and the

Russian SFSR The Russian Soviet Federative Socialist Republic (Russian SFSR or RSFSR), previously known as the Russian Socialist Federative Soviet Republic and the Russian Soviet Republic, and unofficially as Soviet Russia,Declaration of Rights of the labo ...

, 1917–1991, was established on much of its territory. Its area of effective direct control varied greatly during the

Russian Civil War The Russian Civil War () was a multi-party civil war in the former Russian Empire sparked by the 1917 overthrowing of the Russian Provisional Government in the October Revolution, as many factions vied to determine Russia's political future. I ...

of 1917 to 1922. Eventually the revolutionary Bolshevik government regained control of most of the former Eurasian lands of the Russian Empire, and in 1922 joined the Russian SFSR to Belarus, Transcaucasia, and Ukraine as the four constituent republics of a new state, the

Union of Soviet Socialist Republics The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 until it dissolved in 1991. During its existence, it was the largest country by are ...

(USSR), which lasted until December 1991. Map Europe 1923-en

Territories of the former Russian Empire that permanently or temporarily became independent: *

Crimean People's Republic The Crimean People's Republic ( Crimean Tatar: ; ; ) or Crimean Democratic Republic was a self-declared state that existed from December 1917 to January 1918 in the Crimean Peninsula. The Republic was one of many short-lived states that declare ...

, 1917–1918 * Republic of Aras, 1918–1919 *

Alash Autonomy The Alash Autonomy, also known as Alash Orda, was an unrecognized Kazakh proto-state located in Central Asia and was part of the Russian Republic, and then Soviet Russia. The Alash Autonomy was founded in 1917 by Kazakh elites, and disestabli ...

, 1917–1920 *

Kingdom of Lithuania (1918) The Kingdom of Lithuania was an attempt to establish an independent constitutional Lithuanian monarchy in February 1918. It was created towards the end of World War I when Lithuanian-speaking lands were under military occupation by the German ...

, 1918 *

Ukrainian People's Republic The Ukrainian People's Republic (UPR) was a short-lived state in Eastern Europe. Prior to its proclamation, the Central Council of Ukraine was elected in March 1917 Ukraine after the Russian Revolution, as a result of the February Revolution, ...

Ukrainian State The Ukrainian State (), sometimes also called the Second Cossack Hetmanate, Hetmanate (), was an Anti-communism, anti-Bolshevik government that existed on most of the modern territory of Ukraine (except for Western Ukraine) from 29 April to 14 ...

, 1917–1921 *

Duchy of Courland and Semigallia (1918) The Duchy of Courland and Semigallia was the name for a proposed client state of the German Empire during World War I which did not come into existence. It was proclaimed on 8 March 1918, in the German-occupied Courland Governorate by a council ...

, 1918 *

First Republic of Armenia The First Republic of Armenia, officially known at the time of its existence as the Republic of Armenia, was an independent History of Armenia, Armenian state that existed from May (28th ''de jure'', 30th ''de facto'') 1918 to 2 December 1920 in ...

, 1918–1920 *

Azerbaijan Democratic Republic The Azerbaijan Democratic Republic (), also known as the Azerbaijan People's Republic (; ), was the first secular democracy, democratic republic in the Turkic peoples, Turkic and Muslim worlds. *Tadeusz Swietochowski. ''Russia and Azerbaijan: ...

, 1918–1920 *

Republic of Finland Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It borders Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland to the south, ...

, 1917– *

Kingdom of Finland (1918) The Kingdom of Finland (; ; 19181919) was a failed attempt to establish a monarchy in Finland in the aftermath of the Finnish Declaration of Independence from Russia in December 1917 and the Finnish Civil War from January to May 1918. The victor ...

, 1918–1919 *

Belarusian Democratic Republic The Belarusian People's Republic (BNR; , ), also known as the Belarusian Democratic Republic, was a state proclaimed by the Council of the Belarusian Democratic Republic in its Second Constituent Charter on 9 March 1918 during World War I. The ...

, 1918–1919 * Balagad state, 1919–1926 *

North Caucasian Emirate The North Caucasian Emirate () was a mainly Avar and Chechen Islamic state that existed in the territory of Chechnya and western Dagestan during the Russian Civil War from September 1919 to March 1920. The emirate's temporary capital was estab ...

, 1919–1920 *

Republic of Latvia Latvia, officially the Republic of Latvia, is a country in the Baltic region of Northern Europe. It is one of the three Baltic states, along with Estonia to the north and Lithuania to the south. It borders Russia to the east and Belarus to t ...

, 1919–1940 *

Republic of Central Lithuania The Republic of Central Lithuania (, ), commonly known as the Central Lithuania, and the Middle Lithuania (, , ), was an unrecognized short-lived puppet state of Poland, that existed from 1920 to 1922. It was founded on 12 October 1920, after ...

, 1920–1922 * Centrocaspian Dictatorship, 1918 *

Democratic Republic of Georgia The Democratic Republic of Georgia (DRG; ka, საქართველოს დემოკრატიული რესპუბლიკა, tr) was the first modern establishment of a republic of Georgia (country), Georgia, which exist ...

, 1918–1921 *

Moldavian Democratic Republic The Moldavian Democratic Republic (MDR; , ), also known as the Moldavian Republic or Moldavian People's Republic, was a state proclaimed on by the ''Sfatul Țării'' (National Council) of Bessarabia, elected in October–November 1917 foll ...

, 1917–1918 *

Mountainous Republic of the Northern Caucasus The Mountainous Republic of the Northern Caucasus (MRNC), also referred to as the United Republics of the North Caucasus, Mountain Republic, or the Republic of the Mountaineers, was a transcontinental state in Eurasia. It encompassed the entiret ...

, 1917–1920 *

North Ingria The Republic of Kirjasalo (), commonly known as the Republic of North Ingria () was a short-lived unrecognized state from 9 July 1919 to 5/6 December 1920.Most Finnish-language sources state 5 December 1920 as the date when the republic was diss ...

, 1919–1920 *

Transcaucasian Democratic Federative Republic The Transcaucasian Democratic Federative Republic (TDFR; 22 April – 28 May 1918) was a short-lived sovereign state, state in the Caucasus that included most of the territory of the present-day Armenia, Azerbaijan and Georgia (coun ...

, 1918 In 1919, northern Mhlyn, Novozybkiv, Starodub, and Surazh counties (''s'') of Ukraine's

Chernihiv Governorate Chernigov Governorate was an administrative-territorial unit ('' guberniya'') of the Russian Empire. It was officially created in 1802 from the disbanded Little Russia Governorate and had its capital in Chernigov. Its borders encompassed the m ...

were transferred from the Ukrainian SSR to the new

Gomel Governorate Gomel Governorate was an administrative-territorial unit ('' guberniya'') of the Russian SFSR from 1919 to 1926 with its capital in Gomel.http://www.jewishgen.org/belarus/borders_timeline.htm It was formed from nine uyezds of the abolished Mogi ...

of the Russian republic. In February 1924, Tahanrih and Shakhtinsky counties ( ''okruhas'') were transferred from the Donetsk Governorate of Ukraine to Russia's

North Caucasus krai North Caucasus Krai (, ''Severo-Kavkazskiy kray'') was an administrative division (''krai'') within the Russian Soviet Federative Socialist Republic of the Soviet Union. It was established on 17 October 1924. Its administrative center was Rost ...

. By the end of

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

the Soviet Union had annexed: USSR Republics numbered by alphabet

*the

Kresy Eastern Borderlands (), often simply Borderlands (, ) was a historical region of the eastern part of the Second Polish Republic. The term was coined during the interwar period (1918–1939). Largely agricultural and extensively multi-ethnic with ...

(modern

Western Belarus Western Belorussia or Western Belarus (; ; ) is a historical region of modern-day Belarus which belonged to the Second Polish Republic during the interwar period. For twenty years before the 1939 invasion of Poland, it was the northern part of th ...

and

Western Ukraine Western Ukraine or West Ukraine (, ) refers to the western territories of Ukraine. There is no universally accepted definition of the territory's boundaries, but the contemporary Ukrainian administrative regions ( oblasts) of Chernivtsi, I ...

) from the

Second Polish Republic The Second Polish Republic, at the time officially known as the Republic of Poland, was a country in Central and Eastern Europe that existed between 7 October 1918 and 6 October 1939. The state was established in the final stage of World War I ...

(see

Territories of Poland annexed by the Soviet Union Seventeen days after the German invasion of Poland in 1939, which marked the beginning of the Second World War, the Soviet Union entered the eastern regions of Poland (known as the ) and annexed territories totalling with a population of 13,299 ...

), annexed in September–October 1939 * Estonia, Latvia, and Lithuania, occupied in August 1940 *

Bessarabia Bessarabia () is a historical region in Eastern Europe, bounded by the Dniester river on the east and the Prut river on the west. About two thirds of Bessarabia lies within modern-day Moldova, with the Budjak region covering the southern coa ...

(Moldova),

Hertsa Hertsa or Hertza is a city located in Chernivtsi Raion, Chernivtsi Oblast in western Ukraine and has a population of The city is located close to the border with Romania, southeast of Chernivtsi and north of Dorohoi. Until 2020, it was t ...

, and part of

Bukovina Bukovina or ; ; ; ; , ; see also other languages. is a historical region at the crossroads of Central and Eastern Europe. It is located on the northern slopes of the central Eastern Carpathians and the adjoining plains, today divided betwe ...

, occupied from Romania after an ultimatum in 1940 *Parts of

Karelia Karelia (; Karelian language, Karelian and ; , historically Коре́ла, ''Korela'' []; ) is an area in Northern Europe of historical significance for Russia (including the Soviet Union, Soviet era), Finland, and Sweden. It is currentl ...

and Salla in 1940, Pechengsky District, Pechengsky Raion (Petsamo) in 1944, from

and a 50-year lease on the naval base at Porkkalanniemi, Porkkala in 1944 *

Carpathian Ruthenia Transcarpathia (, ) is a historical region on the border between Central and Eastern Europe, mostly located in western Ukraine's Zakarpattia Oblast. From the Hungarian Hungarian conquest of the Carpathian Basin, conquest of the Carpathian Basin ...

, formerly in Czechoslovakia and occupied in 1944 *

Tuva Tuva (; ) or Tyva (; ), officially the Republic of Tyva,; , is a Republics of Russia, republic of Russia. Tuva lies at the geographical center of Asia, in southern Siberia. The republic borders the Federal subjects of Russia, federal sub ...

(independent 1921–1944; previously governed by

Mongolia Mongolia is a landlocked country in East Asia, bordered by Russia to the north and China to the south and southeast. It covers an area of , with a population of 3.5 million, making it the world's List of countries and dependencies by po ...

and by the Manchu Empire) *Part of

East Prussia East Prussia was a Provinces of Prussia, province of the Kingdom of Prussia from 1772 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 1871); following World War I it formed part of the Weimar Republic's ...

(now

Kaliningrad Oblast Kaliningrad Oblast () is the westernmost federal subjects of Russia, federal subject of the Russian Federation. It is a Enclave and exclave, semi-exclave on the Baltic Sea within the Baltic region of Prussia (region), Prussia, surrounded by Pola ...

) from

Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...

, in 1945 *The

Klaipėda Region The Klaipėda Region () or Memel Territory ( or ''Memelgebiet'') was defined by the 1919 Treaty of Versailles in 1920 and refers to the northernmost part of the German province of East Prussia, when, as Memelland, it was put under the administr ...

, re-annexed to Lithuania in 1945 *The

Kuril Islands The Kuril Islands or Kurile Islands are a volcanic archipelago administered as part of Sakhalin Oblast in the Russian Far East. The islands stretch approximately northeast from Hokkaido in Japan to Kamchatka Peninsula in Russia, separating the ...

and southern

from

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

, occupied in 1945 Of these, Pechenga, Salla, Tuva, Kaliningrad Oblast, the Kurils, and Sakhalin were added to the territory of the RSFSR. In late 1945, Soviet Russia annexed the northern border strip of the

Masurian District The Masurian District, also known as the District of East Prussia, and designated as the 4th District, was a district that acted as an provisional administrative division of Poland, during the administration of the Provisional Government of the Re ...

(current southern border strip of Kaliningrad Oblast) with the towns of Gierdawy (now Zheleznodorozhny) and Iławka (now Bagrationovsk) from Poland and expelled the already formed local Polish administration. The

, formerly a tsarist concession, was taken again by the Soviet Union after the 1929 Sino-Soviet conflict, the railway was returned in 1952. Meanwhile, territories were removed from the Russian SFSR, including

Turkmenistan Turkmenistan is a landlocked country in Central Asia bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the south and southwest and the Caspian Sea to the west. Ash ...

and

Uzbekistan , image_flag = Flag of Uzbekistan.svg , image_coat = Emblem of Uzbekistan.svg , symbol_type = Emblem of Uzbekistan, Emblem , national_anthem = "State Anthem of Uzbekistan, State Anthem of the Republ ...

in 1924,

Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a landlocked country primarily in Central Asia, with a European Kazakhstan, small portion in Eastern Europe. It borders Russia to the Kazakhstan–Russia border, north and west, China to th ...

and

Kyrgyzstan Kyrgyzstan, officially the Kyrgyz Republic, is a landlocked country in Central Asia lying in the Tian Shan and Pamir Mountains, Pamir mountain ranges. Bishkek is the Capital city, capital and List of cities in Kyrgyzstan, largest city. Kyrgyz ...

in 1936, and Karelo-Finland from 1945 to 1956. The

Crimean oblast * oblast An oblast ( or ) is a type of administrative division in Bulgaria and several post-Soviet states, including Belarus, Russia and Ukraine. Historically, it was used in the Russian Empire and the Soviet Union. The term ''oblast'' is often tr ...

and city of

Sevastopol Sevastopol ( ), sometimes written Sebastopol, is the largest city in Crimea and a major port on the Black Sea. Due to its strategic location and the navigability of the city's harbours, Sevastopol has been an important port and naval base th ...

were transferred to Ukraine on 19 February 1954 (later annexed by the Russian Federation in 2014). There were numerous minor border changes between Soviet republics as well. After World War II, the Soviet Union set up seven

satellite states A satellite state or dependent state is a country that is formally independent but under heavy political, economic, and military influence or control from another country. The term was coined by analogy to planetary objects orbiting a larger ob ...

, in which local politics, military, and foreign and domestic policies were dominated by the Soviet Union: *

People's Socialist Republic of Albania The People's Socialist Republic of Albania, () was the Marxist-Leninist state that existed in Albania from 10 January 1946 to the 29 April 1991. Originally founded as the People's Republic of Albania from 1946 to 1976, it was governed by the P ...

(until 1961) *

People's Republic of Bulgaria The People's Republic of Bulgaria (PRB; , NRB; ) was the official name of Bulgaria when it was a socialist republic from 1946 to 1990, ruled by the Bulgarian Communist Party (BCP; ) together with its coalition partner, the Bulgarian Agraria ...

Czechoslovak Socialist Republic The Czechoslovak Socialist Republic, (Czech language, Czech and Slovak language, Slovak: ''Československá socialistická republika'', ČSSR) known from 1948 to 1960 as the Czechoslovak Republic (''Československá republika)'', Fourth Czecho ...

German Democratic Republic East Germany, officially known as the German Democratic Republic (GDR), was a country in Central Europe from Foundation of East Germany, its formation on 7 October 1949 until German reunification, its reunification with West Germany (FRG) on ...

Hungarian People's Republic The Hungarian People's Republic (HPR) was a landlocked country in Central Europe from its formation on 20 August 1949 until the establishment of the current Hungary, Republic of Hungary on 23 October 1989. It was a professed Communist_state# ...

Polish People's Republic The Polish People's Republic (1952–1989), formerly the Republic of Poland (1947–1952), and also often simply known as Poland, was a country in Central Europe that existed as the predecessor of the modern-day democratic Republic of Poland. ...

Socialist Republic of Romania The Socialist Republic of Romania (, RSR) was a Marxism–Leninism, Marxist–Leninist One-party state, one-party socialist state that existed officially in Romania from 1947 to 1989 (see Revolutions of 1989). From 1947 to 1965, the state was ...

(until 1965)

Russian Federation

Annexation of Southern and Eastern Ukraine

The

dissolution of the Soviet Union The Soviet Union was formally dissolved as a sovereign state and subject of international law on 26 December 1991 by Declaration No. 142-N of the Soviet of the Republics of the Supreme Soviet of the Soviet Union. Declaration No. 142-Н of ...

has led to the creation of independent

post-Soviet states The post-Soviet states, also referred to as the former Soviet Union or the former Soviet republics, are the independent sovereign states that emerged/re-emerged from the dissolution of the Soviet Union in 1991. Prior to their independence, they ...

, with the

declaring its independence in December 1991 and changing its name to the

Russian Federation Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

. The

Chechen Republic of Ichkeria The Chechen Republic of Ichkeria ( ; ; ; abbreviated as "ChRI" or "CRI"), known simply as Ichkeria, was a ''de facto'' State (polity), state that controlled most of the former Checheno-Ingush Autonomous Soviet Socialist Republic, Checheno-Ingus ...

was a secessionist government of the Chechen Republic during 1991–2000. After Russian defeat at the Battle of Grozny, the

First Chechen War The First Chechen War, also referred to as the First Russo-Chechen War, was a struggle for independence waged by the Chechen Republic of Ichkeria against the invading Russia, Russian Federation from 1994 to 1996. After a mutually agreed on treaty ...

ended with Russia recognizing the new Ichkerian government of president Maskhadov in January 1997 and signing a

peace treaty A peace treaty is an treaty, agreement between two or more hostile parties, usually country, countries or governments, which formally ends a declaration of war, state of war between the parties. It is different from an armistice, which is an ag ...

in May. But Russia invaded again in 1999, restoring a Chechen Republic and the Ichkeria government was exiled in 2000. The Russian Federation has been involved in territorial disputes with several its neighbours, including with

over the Kuril Islands, with Latvia over the Pytalovsky Raion (settled in 1997), with

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

over parts of Tarabarov Island and

Bolshoy Ussuriysky Island Bolshoi Ussuriysky Island (), or Heixiazi Island ( zh, s=黑瞎子岛, t=黑瞎子島, p=Hēixiāzi Dǎo, l=black bear island), is a sedimentary island at the confluence of the Amur and Ussuri rivers. Since the Sino-Russian Border Agreement th ...

( settled in 2001), with its coastal neighbours over Caspian Sea boundaries, and with

Estonia Estonia, officially the Republic of Estonia, is a country in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Ru ...

over the adjoining border. Russia also had disputes with Ukraine over the status of the federal city of

, but agreed it belonged to Ukraine in the 1997 Russian–Ukrainian Friendship Treaty, and over the uninhabited

Tuzla Island The Tuzla Island (; ; ; from Turkic "tuzla" – salty, saline, : ''saltpan'') is a sandy islet in the form of a spit located in the middle of the Strait of Kerch, between the Kerch Peninsula in the west and the Taman Peninsula in the east. ...

, but gave up this claim in the 2003 Treaty on the Sea of Azov and the Kerch Strait. The Russian Federation has also used its armed forces, armed formations, and material support to help establish the

disputed Controversy (, ) is a state of prolonged public dispute or debate, usually concerning a matter of conflicting opinion or point of view. The word was coined from the Latin ''controversia'', as a composite of ''controversus'' – "turned in an oppo ...

breakaway states of

Transnistria Transnistria, officially known as the Pridnestrovian Moldavian Republic and locally as Pridnestrovie, is a Landlocked country, landlocked Transnistria conflict#International recognition of Transnistria, breakaway state internationally recogn ...

Moldova Moldova, officially the Republic of Moldova, is a Landlocked country, landlocked country in Eastern Europe, with an area of and population of 2.42 million. Moldova is bordered by Romania to the west and Ukraine to the north, east, and south. ...

after the

Transnistria War The Transnistria War (; ) was an armed conflict that broke out on 2 November 1990 in Dubăsari between pro-Transnistria (Pridnestrovian Moldavian Republic, PMR) forces, including the Transnistrian Republican Guard, militia and neo-Cossack unit ...

, and

South Ossetia South Ossetia, officially the Republic of South Ossetia or the State of Alania, is a landlocked country in the South Caucasus with International recognition of Abkhazia and South Ossetia, partial diplomatic recognition. It has an offici ...

and

Abkhazia Abkhazia, officially the Republic of Abkhazia, is a List of states with limited recognition, partially recognised state in the South Caucasus, on the eastern coast of the Black Sea, at the intersection of Eastern Europe and West Asia. It cover ...

, after the 2008 war in Georgia. In 2008, shortly after announcing the recognition of

and

, Russian president

Dmitry Medvedev Dmitry Anatolyevich Medvedev (born 14 September 1965) is a Russian politician and lawyer who has served as Deputy Chairman of the Security Council of Russia since 2020. Medvedev was also President of Russia between 2008 and 2012 and Prime Mini ...

laid out a foreign policy challenging the US-dominated "single-pole" world order and claiming a privileged

sphere of influence In the field of international relations, a sphere of influence (SOI) is a spatial region or concept division over which a state or organization has a level of cultural, economic, military, or political exclusivity. While there may be a formal a ...

in the near abroad around the Russian Federation and farther abroad. Following these conflicts, both

and

have made proposals for joining Russia. In 2014, when after months of protests in Ukraine, pro-Russian Ukrainian president

Viktor Yanukovych Viktor Fedorovych Yanukovych (born 9 July 1950) is a Ukrainian politician who served as the fourth president of Ukraine from 2010 to 2014. He also served as the prime minister of Ukraine several times between 2002 and 2007 and was a member of t ...

was deposed in the

Revolution of Dignity The Revolution of Dignity (), also known as the Maidan Revolution or the Ukrainian Revolution, took place in Ukraine in February 2014 at the end of the Euromaidan protests, when deadly clashes between protesters and state forces in the capit ...

, Russian troops occupied Ukraine's

Crimean peninsula Crimea ( ) is a peninsula in Eastern Europe, on the northern coast of the Black Sea, almost entirely surrounded by the Black Sea and the smaller Sea of Azov. The Isthmus of Perekop connects the peninsula to Kherson Oblast in mainland Ukrai ...

, and after a hasty

referendum A referendum, plebiscite, or ballot measure is a Direct democracy, direct vote by the Constituency, electorate (rather than their Representative democracy, representatives) on a proposal, law, or political issue. A referendum may be either bin ...

the Kremlin annexed Crimea and Sevastopol. The annexation was not recognized by

Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...

or most other members of the international community. A few weeks later, an armed conflict broke out the Donbas region of Ukraine, in which the Kremlin denies an active role, but is widely considered to be fuelled by soldiers, militants, weapons, and ammunition from the Russian Federation. On February 21, 2022, the Russian president Putin signed a decree recognizing the independence of two Donbas republics in Ukraine, and invaded the region. Two days later, Russian troops openly invaded Ukrainian-held territory of Ukraine, a move widely seen as an attempt to conduct regime change and occupy much or all of Ukraine. After failing to seize Ukraine's capital Kyiv for over a month, the Russian defence minister stated that the main goal of the war was the "liberation of the Donbas", but later a Russian general stated that it was to seize eastern and southern Ukraine right through to Transnistria, a breakaway territory in Moldova. On 30 September 2022, Putin announced in a speech that Russia was to annex four partially occupied regions of Ukraine:

Donetsk Donetsk ( , ; ; ), formerly known as Aleksandrovka, Yuzivka (or Hughesovka), Stalin, and Stalino, is an industrial city in eastern Ukraine located on the Kalmius River in Donetsk Oblast, which is currently occupied by Russia as the capita ...

Kherson Kherson (Ukrainian language, Ukrainian and , , ) is a port city in southern Ukraine that serves as the administrative centre of Kherson Oblast. Located by the Black Sea and on the Dnieper, Dnieper River, Kherson is the home to a major ship-bui ...

Luhansk Luhansk (, ; , ), also known as Lugansk (, ; , ), is a city in the Donbas in eastern Ukraine. As of 2022, the population was estimated to be making Luhansk the Cities in Ukraine, 12th-largest city in Ukraine. Luhansk served as the administra ...

, and

Zaporizhzhia Oblast Zaporizhzhia Oblast (), commonly referred to as Zaporizhzhia (), is an oblast (region) in south-east Ukraine. Its administrative centre is the city of Zaporizhzhia. The oblast covers an area of , and has a population of The oblast is an import ...

s. However, Russia's annexation of these territories was widely condemned by the international community, and Russia does not control the full territory of any of the four annexed regions, and its government was unable to describe the new international "borders".

Tsarist Russia

Expansion into Asia

Table of changes

Russian SFSR and Soviet Union

Russian Federation

See also

References

Further reading

Atlases