Countries Information

Europe

• United Kingdom
  • United Kingdom of Great Britain and Ireland (1900-1922)
  • British Empire (1900-1997)
  • United Kingdom of Great Britain and Northern Ireland (1922-)
  • Commonwealth Realm (1931-)
  • British Overseas Territories (1997-)
  • England
    • England (1900-)
  • Scotland
    • Scotland (1900-)
  • Wales
    • Wales (1900-1953)
    • Wales (1953-1959)
    • Wales (1959-)
  • Northern Ireland
    • Northern Ireland (1921-1953)
    • Northern Ireland (1953-)
  • Isle of Man
    • Isle of Man (1900-1932)
    • Isle of Man (1932-)
  • Channel Islands
    • German occupation of the Channel Islands (1940-1945)
    • Jersey
      • Bailiwick of Jersey (1900-1940) (1945-1981)
      • Bailiwick of Jersey (1981-)
    • Guernsey
      • Bailiwick of Guernsey (1900-1936)
      • Bailiwick of Guernsey (1936-1940) (1945-1985)
      • Bailiwick of Guernsey (1985-)
• France
  • French Third Republic (1900-1940)
  • French Colonial Empire (1900-1958)
  • German occupation of north-east France (1914-1918)
  • German Military Administration in France (1940-1944)
  • Italian Military Administration in France (1940-1943)
  • Free France (1940-1944)
  • French State (1940-1944)
  • Italian occupation of Corsica (1942-1943)
  • French Committee of National Liberation (1943-1944)
  • Provisional Government of the French Republic (1944-1946)
  • French Fourth Republic (1946-1958)
  • French Union (1946-1958)
  • French Community (1958-1995)
  • French Fifth Republic (1958-)
  • French Colonial Empire (1958-1980)
  • Overseas France (1980-)
• Germany
  • German Empire (1900-1918)
  • German Colonial Empire (1900-1918)
  • Free Socialist Republic of Germany (1918-1919)
  • Saxon Soviet Republic (1918-1919)
  • Entente occupation of the Rhineland (1918-1919)
  • Weimar Republic (1918-1919)
  • Bavarian Soviet Republic (1919)
  • Bremen Soviet Republic (1919)
  • League of Nations occupation of the Rhineland (1919-1930)
    • Free State of Bottleneck (1919-1923)
    • French occupation of Frankfurt (1920)
    • Franco-Belgian occupation of the Ruhr (1923-1925)
  • Weimar Republic (1919-1933)
  • Territory of the Saar Basin (1920-1935)
  • Free City of Danzig (1920-1939)
  • Rhenish Republic (1923-1924)
  • German Reich (1933-1935)
  • German Reich (1935-1943)
  • Greater German Reich (1943-1945)
  • Allied-occupied Germany (1945-1949)
    • American occupation zone of Germany (1945-1947)
    • British occupation zone of Germany (1945-1947)
    • French occupation zone of Germany (1945-1948)
    • Soviet occupation zone of Germany (1945-1949)
    • Bizone (1947-1948)
    • Trizone (1948-1949)
  • Saar Protectorate (French Protectorate) (1947-1956)
  • Federal Republic of Germany (1949-)
  • German Democratic Republic (Soviet Satellite) (1949-1959)
  • East German Uprising (1953)
  • German Democratic Republic (Soviet Satellite) (1959-1990)
  • Peaceful Revolution (1989-1990)
• Italy
  • Kingdom of Italy (1900-1946)
  • Italian Colonial Empire (1900-1946)
  • Italian Social Republic (German Puppet) (1943-1945)
  • Italian Republic (1946-2003)
  • Italian Colonial Empire (1946-1960)
  • Free Territory of Trieste (1947-1954)
  • Italian Republic (2003-2006)
  • Italian Republic (2006-)
• Belgium
  • Kingdom of Belgium (1900-1940) (1944-)
  • Belgian Colonial Empire (1908-1962)
  • German occupation of Belgium (1914-1918)
  • First de Broqueville government (1914-1916)
  • Second de Broqueville government (1916-1918)
  • Belgian government in London (1940-1944)
  • Military Administration of Belgium and Northern France (1940-1944)
  • Belgian Resistance (1940-1944)
  • Reichskommissariat of Belgium and Northern France (1944)
• Netherlands
  • The Netherlands (1900-1940) (1945-)
  • Kingdom of the Netherlands (1900-)
  • Dutch Colonial Empire (1900-1975)
  • Dutch government-in-exile (1940-1945)
  • Reich Commissariat for the Occupied Dutch Territories (1940-1945)
  • Dutch Resistance (1941-1945)
• Luxembourg
  • Grand Duchy of Luxembourg (1900-1914) (1918-1940) (1944-)
  • Eyschen Government (1914-1918)
  • German occupation of Luxembourg (1914-1918)
  • Luxembourg government in exile (1940-1944)
  • Military Administration of Luxembourg (1940)
  • Civil Administration Area of Luxembourg (1940-1942)
  • Luxembourgish Red Lion (1941-1944)
• Russia
  • Russian Federation (1991-1993)
  • Russian Federation (1993-)
  • White Russia
    • Russian Empire (1900-1917)
    • Russian Republic (1917)
    • White Movement (1917-1923)
    • Russian Democratic Federative Republic (1917-1918)
    • Provisional All-Russian Government (1918-1920)
    • Eastern Okraina (1920)
  • Red Russia
    • Russian Soviet Republic (1917-1818)
    • Russian Soviet Republic (1918-1922)
    • Russian Socialist Federative Soviet Republic (1922-1937)
    • Russian Soviet Federative Socialist Republic (1937-1954)
    • Russian Soviet Federative Socialist Republic (1954-1991)
    • Russian Soviet Federative Socialist Republic (1991)
• Poland
  • Kingdom of Poland (German Puppet) (1917-1918)
  • Republic of Zakopane (1918)
  • Republic of Tarnobrzeg (1918-1919)
  • Galician Soviet Socialist Republic (1920)
  • Second Polish Republic (1918-1939)
  • Military Administration in Poland (1939)
  • General Government (1939-1945)
  • Polish Underground State (1939-1945)
  • Government of the Republic of Poland in exile (1939-1990)
  • Provisional Government of the Republic of Poland (1944-1945)
  • Provisional Government of National Unity (Soviet Satellite) (1945-1947)
  • Polish People's Republic (Soviet Satellite) (1947-1989)
  • Republic of Poland (1989-)
• Denmark
  • Kingdom of Denmark (1900-1940) (1945-)
  • Danish Colonial Empire (1900-1940) (1945-1953)
  • Danish Freedom Council (1940-1945)
  • Protectorate of Denmark (German Protectorate) (1940-1943)
  • Danish Resistance Movement (1940-1945)
  • German occupation of Denmark (1943-1945)
  • The Unity of the Realm (1948-)
• Norway
  • Kingdom of Norway (1905-1940) (1945-)
  • Norwegian Overseas Territories (1905-)
  • Nygaardsvold's Cabinet (1940-1945)
  • Reichskommissariat Norwegen (1940-1945)
  • Norwegian Resistance Movement (1940-1945)
  • National Government (German Puppet) (1942-1945)
• Spain
  • Kingdom of Spain (1900-1931)
  • Second Spanish Republic (1931-1939)
  • Spanish State (1936-1938)
  • Spanish State (1938-1945)
  • Government of the Spanish Republic in exile (1939-1977)
  • Spanish State (1945-1947)
  • Kingdom of Spain (1947-1977)
  • Kingdom of Spain (1977-1981)
  • Kingdom of Spain (1981-)
• Turkey
  • Ottoman Empire (1900-1923)
  • Turkish National Movement (1919-1923)
  • Government of the Grand National Assembly (1920-1923)
  • Republic of Turkey (1923-)
• Serbia
  • Kingdom of Serbia (1900-1918)
  • Territory of the Military Commander in Serbia (1941-1944)
  • Government of National Salvation (German Puppet) (1941-1944)
  • Federal State of Serbia (1945-1946)
  • People's Republic of Serbia (1946-1963)
  • Socialist Republic of Serbia (1963-1990)
  • Republic of Serbia (1990-1992)
  • Republic of Serbia (1992-2006)
  • Republic of Serbia (2006-2010)
  • Republic of Serbia (2010-)
• Vatican City
  • States of the Church (Italian Province) (1900-1929)
  • Vatican City State (1929-)
  • Holy See (1929-)
• San Marino
  • Most Serene Republic of San Marino (1900-1944) (1944-2011)
  • German occupation of San Marino (1944)
  • British occupation of San Marino (1944)
  • Most Serene Republic of San Marino (2011-)
• Yugoslavia
  • State of Slovenes, Croats and Serbs (1918)
  • Kingdom of Serbs, Croats and Slovenes (1918-1929)
  • Kingdom of Yugoslavia (1929-1941)
  • Government of the Kingdom of Yugoslavia in Exile (1941-1945)
  • National Liberation Army and Partisan Detachments of Yugoslavia (1941-1945)
  • Chetnik Detachments of the Yugoslav Army (1941-1946)
  • Democratic Federal Yugoslavia (1943-1945)
  • Federal People's Republic of Yugoslavia (1945-1963)
  • Socialist Federal Republic of Yugoslavia (1963-1992)
  • Federal Republic of Yugoslavia (1992-2003)
  • State Union of Serbia and Montenegro (2003-2006)
• Bulgaria
  • Eastern Rumelia (1900-1908)
  • Principality of Bulgaria (Ottoman Vassal) (1900-1908)
  • Third Bulgarian Tsardom (1908-1944)
  • Provisional Government of Western Thrace (1913)
  • Independent Government of Western Thrace (1913)
  • Soviet occupation of Bulgaria (1944)
  • Third Bulgarian Tsardom (1944-1946)
  • People's Republic of Bulgaria (1946-1949)
  • People's Republic of Bulgaria (Soviet Satellite) (1949 -1967)
  • People's Republic of Bulgaria (Soviet Satellite) (1967-1971)
  • People's Republic of Bulgaria (Soviet Satellite) (1971-1990)
  • Republic of Bulgaria (1990-)
• Finland
  • Grand Duchy of Finland (1900-1917)
  • White Finland (1917-1918)
  • Finnish Socialist Workers' Republic (1918)
  • Kingdom of Finland (German Puppet) (1918)
  • Kingdom of Finland (1918-1919)
  • Republic of Finland (1919-)
  • Åland Islands (1921-1954)
  • Finnish Democratic Republic (1939-1940)
  • Karelo-Finnish Soviet Socialist Republic (1940-1953)
  • Finnish Military Administration in Eastern Karelia (1941-1944)
  • Karelo-Finnish Soviet Socialist Republic (1953-1956)
  • Åland Islands (1954-)
• Czechoslovakia
  • First Czechoslovak Republic (1918-1920)
  • First Czechoslovak Republic (1920-1938)
  • Second Czechoslovak Republic (1938-1939)
  • Carpatho-Ukraine (1939)
  • Provisional Government of Czechoslovakia (1939-1945)
  • Soviet occupation of Czechoslovakia (1944-1945)
  • Third Czechoslovak Republic (1945-1948)
  • Czechoslovak Socialist Republic (Soviet Satellite) (1948-1960)
  • Czechoslovak Socialist Republic (1960-1968)
  • Czechoslovak Socialist Republic (Soviet Satellite) (1968-1990)
  • Velvet Revolution (1989)
  • Czech and Slovak Federative Republic (1990-1992)
• Czechia
  • Protectorate of Bohemia and Moravia (German Protectorate) (1939-1945)
  • Czech Socialist Republic (1969-1990)
  • Czech Republic (1990-1992)
  • Czech Republic (1992-)
• Slovakia
  • Slovak Soviet Republic (Hungarian Puppet) (1919)
  • Slovak Republic (German Puppet) (1939-1945)
  • Slovak Socialist Republic (1969-1990)
  • Slovak Republic (1990-1992)
  • Slovak Republic (1992-)
• Greece
  • Kingdom of Greece (1900-1924) (1935-1941) (1944-1967)
  • Second Hellenic Republic (1924-1935)
  • Greek government-in-exile (1941-1944)
  • National Resistance (1941-1944)
  • Hellenic State (Italian Puppet) (1941-1943)
  • Hellenic State (German Puppet) (1943-1944)
  • Kingdom of Greece (1967-1973)
  • Hellenic Republic (1973-1974)
  • Hellenic Republic (1974-1978)
  • Hellenic Republic (1978-)
• Monaco
  • Principality of Monaco (1900-1942) (1944-)
  • Italian occupation of Monaco (1942-1943)
  • German occupation of Monaco (1943-1944)
• Ireland
  • Ireland (1900-1921)
  • Irish Republic (1919-1922)
  • Southern Ireland (1921-1922)
  • Irish Free State (British Dominion) (1922-1937)
  • Dominion of Éire (British Dominion) (1937-1949)
  • Republic of Ireland (1949-)
• Liechtenstein
  • Principality of Liechtenstein (1900-1921)
  • Principality of Liechtenstein (1921-1937)
  • Principality of Liechtenstein (1937-1982)
  • Principality of Liechtenstein (1982-)
• Faroe Islands
  • Colony of the Faroe Islands (1900-1940) (1945-1948)
  • British occupation of the Faroe Islands (1940-1945)
  • Faroe Islands (1948-)
• Iceland
  • Colony of Iceland (1900-1918)
  • Kingdom of Iceland (Danish Dominion) (1918-1940)
  • British occupation of Iceland (1940-1941)
  • Canadian occupation of Iceland (1940-1941)
  • American occupation of Iceland (1941-1945)
  • Republic of Iceland (1945-)
• Bosnia and Herzegovina
  • Condominium of Bosnia and Herzegovina (1900-1918)
  • Bosnia (1900-1908)
  • Herzegovina (1900-)
  • Bosnia (1908)
  • Bosnia (1908-)
  • Socialist Republic of Bosnia and Herzegovina (1943-1992)
  • Republic of Bosnia and Herzegovina (1992-1995)
  • United Nations Mission in Bosnia and Herzegovina (1995-2002)
  • Bosnia and Herzegovina (1995-1998)
  • Bosnia and Herzegovina (1998-)
  • European Union Police Mission in Bosnia and Herzegovina (2002-2012)
• Gibraltar
  • Crown Colony of Gibraltar (1900-1939)
  • Crown Colony of Gibraltar (1939-1981)
  • British Dependent Territory of Gibraltar (1981-1982)
  • British Dependent Territory of Gibraltar (1982-2002)
  • British Overseas Territory of Gibraltar (2002-)
• Andorra
  • Principality of Andorra (1900-1934) (1934-1936) (1971-)
  • Principality of Andorra (1934)
  • French occupation of Andorra (1936-1940)
  • Principality of Andorra (1940-1971)
• Soviet Union
  • Union of Soviet Socialist Republics (1922-1923)
  • Union of Soviet Socialist Republics (1923-1924)
  • Union of Soviet Socialist Republics (1924-1936)
  • Union of Soviet Socialist Republics (1936-1955)
  • Union of Soviet Socialist Republics (1955-1991)
  • Commonwealth of Independent States (1991-)
  • Collective Security Treaty Organization (1992-)
  • Union State (1996-)
  • Eurasian Economic Union (2014-)
• Portugal
  • Kingdom of Portugal (1900-1910)
  • Portuguese Colonial Empire (1900-1910)
  • First Portuguese Republic (1910-1926)
  • Portuguese Colonial Empire (1910-1999)
  • Monarchy of the North (1919)
  • National Dictatorship (1926-1933)
  • Second Portuguese Republic (1933-1974)
  • National Salvation Junta (1974-1975)
  • Portuguese Republic (1975-)
• Sweden
  • United Kingdoms of Sweden and Norway (1900-1905)
  • Kingdom of Sweden (1905-)
• Hungary
  • Lands of the Crown of Saint Stephen (1900-1918)
  • First Hungarian Republic (1918-1919) (1919)
  • Hungarian Soviet Republic (1919)
  • Hungarian Republic (1919-1920)
  • Kingdom of Hungary (1920-1944) (1945-1946)
  • Government of National Unity (German Puppet) (1944-1945)
  • Soviet occupation of Hungary (1944)
  • Second Hungarian Republic (1946-1949)
  • Hungarian People's Republic (Soviet Satellite) (1949-1956)
  • Hungarian Uprising (1956)
  • Hungarian People's Republic (Soviet Satellite) (1956-1957)
  • Hungarian People's Republic (Soviet Satellite) (1957-1989)
  • Hungary (1989-)
• Romania
  • Kingdom of Romania (1900-1940) (1941-1944) (1944-1947)
  • National Legionary State (1940-1941)
  • Soviet occupation of Romania (1944)
  • Romanian People's Republic (Soviet Satellite) (1947-1948)
  • Romanian People's Republic (Soviet Satellite) (1948-1952)
  • Romanian People's Republic(Soviet Satellite) (1952-1965)
  • Socialist Republic of Romania (1965-1989)
  • Romanian Uprising (1989)
  • Romania (1989-)
• Alsace and Lorraine
  • Imperial Territory of Alsace-Lorraine (1900-1918)
  • Alsace-Lorraine Soviet Republic (1918)
  • Alsace (1918-1949)
  • Lorraine (1918-)
  • Alsace (1949-2008)
  • Alsace (2008-)

North America

• United States of America
  • United States of America (1900-1908)
  • United States of America (1908-1912)
  • United States of America (1912-1959)
  • United States of America (1959-1960)
  • United States of America (1960-)
• Canada
  • Dominion of Canada (British Dominion) (1900-1921)
  • Dominion of Canada (British Dominion) (1921-1953)
  • Canada (British Commonwealth Realm) (1953-1957)
  • Canada (British Commonwealth Realm) (1957-1965)
  • Canada (British Commonwealth Realm) (1965-)
• Mexico
  • United Mexican States (1900-1916)
  • United Mexican States (1916-1934)
  • United Mexican States (1934-1968)
  • United Mexican States (1968-)
• Bermuda
  • Crown Colony of Bermuda (1900-1910)
  • Crown Colony of Bermuda (1910-1981)
  • British Dependent Territory of Bermuda (1981-1999)
  • British Dependent Territory of Bermuda (1999-2002)
  • British Overseas Territory of Bermuda (2002-)
• Newfoundland and Labrador
  • Newfoundland Colony (1900-1907)
  • Dominion of Newfoundland (British Dominion) (1907-1949)
  • Newfoundland and Labrador (Canadian Province) (1949-1980)
  • Newfoundland (1949-1980)
  • Labrador (1949-1980)
  • Newfoundland and Labrador (Canadian Province) (1980-)
  • Newfoundland (1980-)
  • Labrador (1980-)
• Alaska
  • Territory of Alaska (1900-1959)
  • State of Alaska (1959-)
• Greenland
  • Colony of Greenland (1900-1940) (1945-1979)
  • American occupation of Greenland (1940-1945)
  • Greenland (1979-)
• Virginia
  • Commonwealth of Virginia (1900-1950)
  • Commonwealth of Virginia (1950-)

Asia

• Japan
  • Empire of Japan (1900-1945)
  • Empire of Japan (1945-1947)
  • United States Military Government of the Ryukyu Islands (1945-1950)
  • State of Japan (1947-1952)
  • United States Civil Administration of the Ryukyu Islands (1950-1959)
  • State of Japan (1952-1999)
  • United States Civil Administration of the Ryukyu Islands (1959-1960)
  • United States Civil Administration of the Ryukyu Islands (1960-1972)
  • State of Japan (1999-)
• China
  • Republic of China
    • Great Qing (1900-1912)
    • Society of the Righteous and Harmonious Fists (1900-1901)
    • First Republic of China (1912-1915) (1916-1928)
    • Empire of China (1915-1916)
    • Empire of China (1916)
    • Republic of China (1928-)
    • State of Manchuria (1932-1934)
    • Empire of Great Manchuria (1934-1945)
    • East Hebei Autonomous Government (Japanese Puppet) (1935-1938)
    • Provisional Government of the Republic of China (Japanese Puppet) (1937-1940)
    • Reformed Government of the Republic of China (Japanese Puppet) (1938-1940)
    • Reorganized National Government of the Republic of China (Japanese Puppet) (1940-1943)
    • Reorganized National Government of the Republic of China (Japanese Puppet) (1943-1945)
  • People's Republic of China
    • Hunan Soviet (1927)
    • Guangzhou Commune (1927)
    • Soviet Zone of China (1927-1949)
    • Shinmin Prefecture (1929-1932)
    • Chinese Soviet Republic (1931-1937)
    • Jiangxi–Fujian Soviet (1931-1934)
    • People's Revolutionary Government of the Republic of China (1933-1934)
    • Soviet occupation of Manchuria (1945-1946)
    • People's Republic of China (1949-)
  • Chinese Warlords
    • Guangxi
      • Old Guangxi Clique (1911-1925)
      • New Guangxi Clique (1925-1949)
    • Qinghai
      • Ma Clique (1915-1931)
      • Ma Clique (1931-1949)
    • Yunnan
      • Yunnan Clique (1911-1927)
      • Yunnan Clique (1927-1949)
    • Shanxi
      • Shanxi Clique (1911-1927)
      • Shanxi Clique (1927-1949)
    • Xinjiang
      • Xinjiang Clique (1912-1928)
      • Xinjiang Clique (1928-1933)
      • Xinjiang clique (Soviet Puppet) (1933-1944)
      • First East Turkestan Republic (1933-1934)
      • Second East Turkestan Republic (Soviet Puppet) (1944-1949)
      • East Turkestan Islamic Movement (1988-1999)
      • East Turkistan Education and Solidarity Association (1998-)
      • Turkistan Islamic Movement (1999-)
• Philippines
  • United States Military Government of the Philippine Islands (1900-1902)
  • Insular Government of the Philippine Islands (1901-1935)
  • Commonwealth of the Philippines (American Protectorate) (1935-1942) (1945-1946)
  • Philippine Resistance Movement (1941-1945)
  • Hukbalahap (1942-1954)
  • Philippine Executive Commission (1942-1943)
  • Second Philippine Republic (1943-1945)
  • Third Republic of the Philippines (1946-1965)
  • Fourth Republic of the Philippines (1965-1986)
  • Republic of the Philippines (1986-1998)
  • Republic of the Philippines (1998-)
• Thailand
  • Kingdom of Siam (1900-1916)
  • Kingdom of Siam (1916-1917)
  • Kingdom of Siam (1917-1939)
  • Kingdom of Thailand (1939-)
  • Free Thai Movement (1941-1945)
  • British occupation of Thailand (1946)
• Tibet
  • Ganden Phodrang (1900-1959)
  • Tibet (Qing Protectorate) (1900-1912)
  • Kingdom of Tibet (British Protectorate) (1904-1944)
  • Kingdom of Tibet (1944-1950)
  • Central Tibetan Administration (1959-)
  • Chinese occupation of Tibet (1951)
  • Tibet Area (1951-1965)
  • Tibet Autonomous Region (1965-)
• Brunei
  • Nation of Brunei, the Abode of Peace (British Protectorate) (1900-1959)
  • Nation of Brunei, the Abode of Peace (British Protectorate) (1959-1984)
  • Nation of Brunei, the Abode of Peace (1984-)
• Sarawak
  • Kingdom of Sarawak (British Protectorate) (1900-1946)
  • Crown Colony of Sarawak (1946-1963)
  • State of Sarawak (Malaysian State) (1963-1973)
  • State of Sarawak (Malaysian State) (1973-1988)
  • State of Sarawak (Malaysian State) (1988-)
• Indonesia
  • Dutch East Indies (1900-1942) (1945-1949)
  • Japanese occupation of the Dutch East Indies (1942-1945)
  • Republic of the United States of Indonesia (1949-1950)
  • Republic of Indonesia (1950-)
  • Republic of South Maluku (1950-1963)
  • Netherlands New Guinea (1949-1962)
  • United Nations Temporary Executive Authority (1962-1963)
  • Free Papua Movement (1963-)
  • United Liberation Movement for West Papua (2014-)
• Cambodia
  • French Protectorate of Cambodia (1900-1941) (1945-1953)
  • Kingdom of Cambodia (Japanese Puppet) (1941-1945)
  • Kingdom of Cambodia (1953-1970)
  • Khmer Republic (1970-1975)
  • Kampuchea (1975-1976)
  • Democratic Kampuchea (1976-1979)
  • People's Republic of Kampuchea (1979-1989)
  • State of Cambodia (1989-1992)
  • United Nations Transitional Authority in Cambodia (1992-1993)
  • Coalition Government of Democratic Kampuchea (1982-1990)
  • National Government of Cambodia (1990-1994)
  • Provisional Government of National Union and National Salvation of Cambodia (1994-1998)
  • Kingdom of Cambodia (1993-)
• Korea
  • Korean Empire (1900-1905)
  • Korean Empire (Japanese Protectorate) (1905-1910)
  • Chōsen (Japanese Colony) (1910-1945)
  • Provisional Government of the Republic of Korea (1919-1948)
  • People's Republic of Korea (1945-1946)
  • Soviet Civil Administration (1945–1946)
  • Provisional People's Committee for North Korea (1946-1948)
  • People's Committee of North Korea (1947-1948)
  • United States Army Military Government in Korea (1945-1948)
  • Democratic People's Republic of Korea (1948-1992)
  • Democratic People's Republic of Korea (1992-)
  • First Republic of Korea (1948-1960)
  • Second Republic of Korea (1960-1961)
  • Supreme Council for National Reconstruction of the Republic of Korea (1961-1963)
  • Third Republic of Korea (1963-1972)
  • Fourth Republic of Korea (1972-1981)
  • Fifth Republic of Korea (1981-1987)
  • Republic of Korea (1987-)
• Tuva
  • Tuvan People's Republic (1921)
  • Tuvan People's Republic (1921-1926)
  • Tuvan People's Republic (1926-1930)
  • Tuvan People's Republic (1930-1933)
  • Tuvan People's Republic (1933-1941)
  • Tuvan People's Republic (1941-1943)
  • Tuvan People's Republic (1943-1944)
  • Tuvan Autonomous Oblast (1944-1961)
  • Tuvan Autonomous Soviet Socialist Republic (1961-1978)
  • Tuvan Autonomous Soviet Socialist Republic (1978-1992)
  • Tyva Republic (1992-)
• Outer Mongolia
  • Bogd Khanate of Mongolia (1911-1919) (1921)
  • Chinese occupation of Mongolia (1919-1921)
  • People's Republic of Mongolia (1921-1924)
  • Mongolian People's Republic (1924-1930)
  • Mongolian People's Republic (1930-1940)
  • Mongolian People's Republic (1940-1945)
  • Mongolian People's Republic (1945-1992)
  • Mongolia (1992-2011)
  • Mongolia (2011-)
• Inner Mongolia
  • Mongol Military Government (1936-1937)
  • Mongol United Autonomous Government (1937-1939)
  • Mengjiang United Autonomous Government (1939-1945)
  • Inner Mongolian People's Republic (1945)
  • Inner Mongolia Autonomous Region (1947-1979)
  • Inner Mongolia Autonomous Region (1979-)

Middle East and North Africa

• Israel
  • State of Israel (1948-)
  • Israeli Civil Administration (1981-)
• Palestine
  • Occupied Enemy Territory Administration (1917-1920)
  • Mandatory Palestine (1920-1924)
  • Mandatory Palestine (1924-1927)
  • Mandatory Palestine (1927-1948)
  • All-Palestine Protectorate (Egyptian Protectorate) (1948-1959)
  • Jordanian occupation of the West Bank (1948-1967)
  • Egyptian occupation of The Gaza Strip (1959-1967)
  • Israeli Military Governorate (1967-1982)
  • State of Palestine (1988-)
  • Palestinian National Authority (1994-)
  • European Union Police Mission in the Palestinian Territories (2005-)
• Egypt
  • Khedivate of Egypt (Ottoman Vassal) (1900-1914)
  • Sultanate of Egypt (British Protectorate) (1914-1922)
  • Kingdom of Egypt (British Protectorate) (1922-1936)
  • Kingdom of Egypt (1936-1953)
  • Free Officers Movement (1952-1953)
  • Republic of Egypt (1953-1958)
  • United Arab Republic (1958-1972)
  • Federation of Arab Republics (1972-1977)
  • Arab Republic of Egypt (1977-1984)
  • Arab Republic of Egypt (1984-)
• Iraq
  • Kingdom of Iraq (British Mandate) (1920-1924)
  • Kingdom of Iraq (British Mandate) (1924-1932)
  • Hashemite Kingdom of Iraq (1932-1941)
  • Kingdom of Iraq (British Puppet) (1941-1958)
  • Arab Federation of Iraq and Jordan (1958)
  • Iraqi Republic (1958-1963)
  • Iraqi Republic (1963-1991)
  • Iraqi Republic (1991-2003)
  • Coalition Provisional Authority (2003-2004)
  • Republic of Iraq (2004-2008)
  • Republic of Iraq (2008-)
• Iran
  • Sublime State of Persia (1900-1910)
  • Sublime State of Persia (1910-1925)
  • Persian Socialist Soviet Republic (1920-1921)
  • Imperial State of Persia (1925-1935)
  • Imperial State of Iran (1935-1941) (1953-1979)
  • Soviet occupation of Iran (1941-1946)
  • Imperial State of Iran (British Puppet) (1941-1953)
  • Azerbaijan People's Government (Soviet Puppet) (1945-1946)
  • Republic of Mahabad (Soviet Puppet) (1946-1947)
  • Interim Government of Iran (1979)
  • Islamic Republic of Iran (1979-)
• Oman
  • Sultanate of Muscat and Oman (British Protectorate) (1900-1970)
  • Sultanate of Oman (1970-1995)
  • Sultanate of Oman (1995-)
• United Arab Emirates
  • Trucial States of the Coast of Oman (British Protectorate) (1900-1971)
  • United Arab Emirates (1971-)
• Qatar
  • State of Qatar (1900-1916)
  • State of Qatar (British Protectorate) (1916-1936)
  • State of Qatar (British Protectorate) (1936-1949)
  • State of Qatar (British Protectorate) (1949-1971)
  • State of Qatar (1971-)
• Bahrain
  • State of Bahrain (British Protectorate) (1900-1932)
  • State of Bahrain (British Protectorate) (1932-1971)
  • State of Bahrain (1971-2002)
  • Kingdom of Bahrain (2002-)
• Kuwait
  • Sheikhdom of Kuwait (British Protectorate) (1900-1914)
  • Sheikhdom of Kuwait (British Protectorate) (1914-1921)
  • Sheikhdom of Kuwait (British Protectorate) (1921-1940)
  • Sheikhdom of Kuwait (British Protectorate) (1940-1961)
  • Republic of Kuwait (1990)
  • Kuwait Governorate (1990-1991)
  • Saddamiyat al-Mitla' District (1990-1991)
  • State of Kuwait (1961-1990) (1991-)
• Jordan
  • Emirate of Transjordan (British Mandate) (1921-1939)
  • Emirate of Transjordan (British Mandate) (1939-1946)
  • Hashemite Kingdom of Jordan (1946-)
• Morocco
  • Kingdom of Morocco (1900-1912) (1956-)
  • French Protectorate in Morocco (1912-1956)
  • Spanish protectorate in Morocco (1912-1956)
  • Confederal Republic of the Tribes of the Rif (1921-1926)
  • Tangier International Zone (1924-1956)
• Saudi Arabia
  • Emirate of Jabal Shammar (1900-1921)
  • Emirate of Nejd and Hasa (1902-1921)
  • Idrisid Emirate of Asir (1906-1934)
  • Hashemite Kingdom of Hejaz (1916-1917)
  • Hashemite Kingdom of Hejaz (1917-1920)
  • Hashemite Kingdom of Hejaz (1920-1926)
  • Sultanate of Nejd (1921-1926)
  • Kingdom of Hejaz and Nejd (1926-1932)
  • Kingdom of Saudi Arabia (1932-1934)
  • Kingdom of Saudi Arabia (1934-1938)
  • Kingdom of Saudi Arabia (1938-1973)
  • Kingdom of Saudi Arabia (1973-)

Oceania

• Australia
  • Aboriginal Australians (1900-)
  • New South Wales Colony (1900-1901)
  • Colony of Western Australia (1900-1901)
  • Province of South Australia (1900-1901)
  • Victoria Colony (1900-1901)
  • Colony of Tasmania (1900-1901)
  • Queensland Colony (1900-1901)
  • Commonwealth of Australia (British Dominion) (1901-1953)
  • Commonwealth of Australia (British Commonwealth Realm) (1953-)
• New Zealand
  • United Tribes of New Zealand (1900-)
  • Colony of New Zealand (1900-1907)
  • Dominion of New Zealand (British Dominion) (1907-1953)
  • New Zealand (British Commonwealth Realm) (1953-)
• Tonga
  • Kingdom of Tonga (British Protectorate) (1900-1970)
  • Kingdom of Tonga (1900) (1970-)
• Hawaii
  • Territory of Hawaii (1900-1959)
  • State of Hawaii (1959-)

India

• India
  • British Raj (1900-1947)
  • Provisional Government of Free India (Japanese Puppet) (1943-1945)
  • Interim Government of India (1946-1947)
  • Dominion of India (British Dominion) (1947-1950)
  • Republic of India (1950-)
• Pakistan
  • Dominion of Pakistan (British Dominion) (1947-1956)
  • West Pakistan (1947-1971)
  • Islamic Republic of Pakistan (1956-)
• Bangladesh
  • East Pakistan (1955-1971)
  • People's Republic of Bangladesh (1971-1972)
  • People's Republic of Bangladesh (1972-)
• Nepal
  • Kingdom of Nepal (British Protectorate) (1900-1923)
  • Kingdom of Nepal (1923-1962)
  • Kingdom of Nepal (1962-2008)
  • Federal Democratic Republic of Nepal (2008-)
• Bhutan
  • Kingdom of Bhutan (1900-1910) (1947-1956)
  • Kingdom of Bhutan (British Protectorate) (1910-1947)
  • Kingdom of Bhutan (1956-1969)
  • Kingdom of Bhutan (1969-)
• Sikkim
  • Kingdom of Sikkim (British Protectorate) (1900-1914)
  • Kingdom of Sikkim (British Protectorate) (1914-1947)
  • Kingdom of Sikkim (1947-1950)
  • Kingdom of Sikkim (Indian Protectorate) (1950-1962)
  • Kingdom of Sikkim (Indian Protectorate) (1962-1967)
  • Kingdom of Sikkim (Indian Protectorate) (1967-1975)
  • State of Sikkim (Indian State) (1975-)
• Sri Lanka
  • British Ceylon (1900-1948)
  • Dominion of Ceylon (British Dominion) (1948-1951)
  • Dominion of Ceylon (British Dominion) (1951-1972)
  • Democratic Socialist Republic of Sri Lanka (1972-)
• Maldives
  • Sultanate of Maldives (British Protectorate) (1900-1903)
  • Sultanate of Maldives (British Protectorate) (1903-1926)
  • Sultanate of Maldives (British Protectorate) (1926-1953)
  • Sultanate of Maldives (British Protectorate) (1953-1954)
  • Sultanate of Maldives (British Protectorate) (1954-1965)
  • United Suvadive Republic (1959-1963)
  • Republic of Maldives (1965-)

Africa

• South Africa
  • Cape of Good Hope (1900-1910)
  • Colony of Natal (1900-1910)
  • South African Republic (1900-1902) (1914-1915)
  • Orange Free State (1900-1902)
  • Transvaal Colony (1902-1910)
  • Orange River Colony (1902-1910)
  • Union of South Africa (British Dominion) (1910-1928)
  • Union of South Africa (British Dominion) (1928-1953)
  • Union of South Africa (British Commonwealth Realm) (1953-1961)
  • Republic of South Africa (1961-1994)
  • Republic of Bophuthatswana (1977-1994)
  • Republic of South Africa (1994-)
• Democratic Republic of the Congo
  • Congo Free State (1900-1908)
  • Belgian Congo (1908-1960)
  • Free Republic of the Congo (1960-1962)
  • South Kasai (1960-1962)
  • State of Katanga (1960-1963)
  • Republic of the Congo (1960-1963)
  • Republic of the Congo (1963-1964)
  • Democratic Republic of the Congo (1964-1966)
  • Democratic Republic of the Congo (1966-1971)
  • Republic of Zaire (1971-1997)
  • Democratic Republic of the Congo (1997-2003)
  • Democratic Republic of the Congo (2003-2006)
  • Democratic Republic of the Congo (2006-)
• Rwanda and Burundi
  • Ruanda-Urundi (1922-1962)
  • Rwanda
    • Kingdom of Rwanda (German Protectorate) (1900-1919)
    • Kingdom of Rwanda (Belgian Protectorate) (1919-1962)
    • Republic of Rwanda (1962-2001)
    • Republic of Rwanda (2001-)
  • Burundi
    • Kingdom of Burundi (German Protectorate) (1900-1919)
    • Kingdom of Burundi (Belgian Protectorate) (1919-1962)
    • Kingdom of Burundi(1962-1966)
    • Republic of Burundi (1966)
    • Republic of Burundi (1966-1967)
    • Republic of Burundi (1967)
    • Republic of Burundi (1967-)
• Ethiopia
  • Ethiopian Empire (1900-1936) (1944-1974)
  • Italian Ethiopia (1936-1944)
  • Italian East Africa (1936-1947)
  • Provisional Military Government of Socialist Ethiopia (1974-1975)
  • Provisional Military Government of Socialist Ethiopia (1975-1987)
  • People's Democratic Republic of Ethiopia (1987-1991)
  • Transitional Government of Ethiopia (1991-1995)
  • Federal Democratic Republic of Ethiopia (1995-2009)
  • Federal Democratic Republic of Ethiopia (2009-)
• Somalia
  • British Somaliland Protectorate (1900-1940) (1941-1952)
  • Italian Somaliland (1900-1941)
  • Dervish State (1900-1920)
  • British Military Administration of Somalia (1941-1949)
  • Trust Territory of Somaliland under Italian Administration (1949-1960)
  • British Somaliland Protectorate (1952-1960)
  • State of Somaliland (1960)
  • Somali Republic (1960-1969)
  • Somali Democratic Republic (1969-1991)
  • Interim Government of Somalia (1991-1997)
  • Republic of Somaliland (1991-1996)
  • Republic of Somaliland (1996-)
  • Transitional National Government of the Republic of Somalia (2000-2004)
  • Transitional Federal Government of the Republic of Somalia (2004-2012)
  • Federal Republic of Somalia (2012-)
• Tanganyika
  • German East Africa Company (1900-1920)
  • German East Africa (1900-1914)
  • German East Africa (1914-1919)
  • Tanganyika Territory (1919-1961)
  • Tanganyika (British Commonwealth Realm) (1961-1962)
  • Republic of Tanganyika (1962-1964)
  • United Republic of Tanzania (1964-)
• Zanzibar
  • Sultanate of Zanzibar (British Protectorate) (1900-1963)
  • Sultanate of Zanzibar (1963-1964)
  • People's Republic of Zanzibar and Pemba (1964)
  • People's Republic of Zanzibar and Pemba (1964)
  • Zanzibar (1964-2005)
  • Zanzibar (2005-)
• Zambia
  • Rhodesia (1900-1924)
  • Northern Rhodesia (1924-1953) (1963-1964)
  • Federation of Rhodesia and Nyasaland (1953-1963)
  • Republic of Zambia (1964-1996)
  • Republic of Zambia (1996-)
• Zimbabwe
  • British South Africa Company (1900-1923)
  • Colony of Southern Rhodesia (1923-1953) (1963-1964)
  • Colony of Southern Rhodesia (1964-1965) (1979-1980)
  • Rhodesia (1965-1968)
  • Rhodesia (1968-1979)
  • Zimbabwe Rhodesia (1979)
  • Republic of Zimbabwe (1980-)

Central America and Caribbean

• Dutch Caribbean
  • Colony of Curaçao and Dependencies (1900-1936) (1948-1954)
  • Territory of Curaçao (1936-1948)
  • Netherlands Antilles (1954-1986)
  • Aruba (1986-)
  • Netherlands Antilles (1986-2010)
  • Caribbean Netherlands (2010-)
  • Bonaire (2010-)
  • Curaçao (2010-)
  • Sint Maarten (2010-)
  • Sint Eustatius (2010-)
  • Saba (2010-)
• Cuba
  • United States Military Government in Cuba (1900-1902)
  • United States Naval Station Guantánamo Bay (1900-)
  • Provisional Government of Cuba (1906-1908)
  • Provisional Government of Cuba (1908-1909)
  • First Republic of Cuba (1902-1906) (1909-1959)
  • 26th of July Movement (1955-1965)
  • Republic of Cuba (1959-)
• Panama
  • Republic of Panama (1903-1925)
  • Panama Canal Zone (1903-1979)
  • Republic of Panama (1925-)
• Guatemala
  • Republic of Guatemala (1900-1924)
  • Republic of Guatemala (1924-)

South America

• Suriname
  • Colony of Surinam (1900-1954)
  • Suriname (1954-1975)
  • Republic of Suriname (1975-)
• French Guiana
  • French Guiana (1900-2010)
  • French Guiana (2010-)
• Guyana
  • British Guiana (1900-1906)
  • British Guiana (1906-1919)
  • British Guiana (1919-1955)
  • British Guiana (1955-1966)
  • Guyana (British Commonwealth Realm) (1966-1970)
  • Co-operative Republic of Guyana (1970-)

Alliance

• United Nations
  • Franco-Russian Alliance (1900-1914)
  • The Entente (1914)
  • The Entente (1914-1917)
  • The Entente (1917-1919)
  • League of Nations (1919-1939)
  • League of Nations (1939-1946)
  • United Nations (1939-1945)
  • United Nations (1945-1947)
  • United Nations (1947-)
• European Union
  • Treaty of Alliance and Mutual Assistance between the United Kingdom and France (1947-1948)
  • Western Union (1948-1954)
  • Western European Union (1954-1995)
  • European Economic Community (1958-1993)
  • European Atomic Energy Community (1958-)
  • European Union (1993-)
  • European Community (1993-2009)
  • Western European Union (1995-2011)
• European Coal and Steel Community
  • International Authority for the Ruhr (1949-1952)
  • European Coal and Steel Community (1952-1972)
  • European Coal and Steel Community (1972-1980)
  • European Coal and Steel Community (1980-1985)
  • European Coal and Steel Community (1985-2002)
• Paneuropean Union
  • International Paneuropean Union (1923-1955)
  • International Paneuropean Union (1955-)

City

• Berlin
  • City of Berlin (1900-1945)
  • American occupation zone of Berlin (1945-1947)
  • British occupation zone of Berlin (1945-1947)
  • French occupation zone of Berlin (1945-1948)
  • Soviet occupation zone of Berlin (1945-1949)
  • City of West Berlin (1949-1990)
  • City of East Berlin (1949-1990)
  • City of Berlin (1990-)
  • State of Berlin (1990-)
• Tianjin
  • Concessions in Tianjin
    • British Concession of Tianjin (1900-1943)
    • French Concession of Tianjin (1900-1946)
    • Japanese Concession of Tianjin (1900-1945)
    • German Concession of Tianjin (1900-1917)
    • Russian Concession of Tianjin (Russian Empire) (1900-1917)
    • Austro-Hungarian Concession of Tianjin (1901-1917)
    • Italian Concession of Tianjin (1901-1947)
    • Belgian Concession of Tianjin (1902-1931)
    • Russian Concession of Tianjin (Russian Republic) (1917)
    • Russian Concession of Tianjin (Russian Democratic Federative Republic) (1917-1918)
    • Russian Concession of Tianjin (Russian Soviet Republic) (1918-1920)
  • Tianjin
    • City of Tianjin (1900-1912)
    • City of Tianjin (1912-1928)
    • City of Tianjin (1928-1937) (1945-1949)
    • City of Tianjin (1949-)
    • Tianjin Municipality (1967-)
• Washington
  • City of Washington (1900-1938)
  • District of Columbia (1900-1938)
  • City of Washington (1938-)
  • District of Columbia (1938-)
• Shanghai
  • City of Shanghai (1900-1912)
  • Shanghai French Concession (1900-1943)
  • Shanghai International Settlement (1900-1914)
  • Shanghai International Settlement (1914-1941)
  • City of Shanghai (1912-1928)
  • Shanghai Municipality (1927-1928)
  • City of Shanghai (1928-1937) (1945-1949)
  • Shanghai Municipality (1928-1937) (1945-1949)
  • The Great Way Municipal Government of Shanghai (Japanese Puppet) (1937-1938)
  • City of Shanghai (1949-)
  • Shanghai Municipality (1949-)

Miscellaneous

• North Atlantic Treaty Organization (1949-)
• Treaty of Friendship, Cooperation, and Mutual Assistance (1955-1991)
• Republic of Liberia (1900-)
• Navajo Nation (1900-)
• Swiss Confederation (1900-)
• Neutral Moresnet (1900-1920)
• Overseas Collectivity of Saint Pierre and Miquelon (1900-)
• Persian Gulf Residency (1900-1947)
• New England (1900-)

World War II Information

United Nations

• British Empire
  • United Kingdom of Great Britain and Northern Ireland
  • Dominion of Canada
  • Dominion of Newfoundland
  • Dominion of Éire Did Not Enter War
  • Dominion of New Zealand
  • Commonwealth of Australia
  • Union of South Africa
    • South West Africa
  • British Raj

Rome–Berlin–Tokyo Axis

• Germany