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Revision as of 19:01, 24 March 2019

Countries

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)
- 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 (1918-1938)
- 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)
- American occupation of Japan (1945-1952)
- United States Military Government of the Ryukyu Islands (1945-1950)
- 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-)
  - 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)
  - 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
- Tibet (British Protectorate) (1912-1944)
- Tibet (1944-1950)
- Ganden Phodrang (1900-1959)
- 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-)
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 (1900-1910)
- 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-)

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)
- Entente (1914)
- Entente (1914-1917)
- 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)
- State of Berlin (1949-)
- City of East Berlin (1949-1990)
- City 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 (1919-1941)
- 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-)

Other Flags

American Flags

Gadsden Flag
Come and Take It
LGBTQ+ Pride
Green Mountain Boys and The Vermont Republic
Army of Northern Virginia
Thirteen Colonies
Ku Klux Klan
American Naval Jack
POW MIA
Bennington
California Republic
Central Intelligence Agency
Betsy Ross
American Nazi Party
Star-Spangled Banner
51 States
American Customs and Border Protection
American Army
American Marine Corps
American Navy
American Air Force
American Coast Guard
Moultrie Liberty
Alamo
Burnet Flag
Georgia Battalion
California Lone Star
German American Bund
Bunker Hill
Imperial States of America

British Flags

British Union of Fascist
Royal Standard
Royal Navy
English Great Britain
Scottish Great Britain
The Commonwealth
The Protectorate
Edward the VIII
Imperial Fascist League

Other Flags

Lehi
Iron Guard
Schutzstaffel
Nazi Party
Hitler Youth
Russian Fascist Party
Russian Empire (Black, Yellow, and White)

@@ Line 429: / Line 429: @@
 *** [[File:Flag of China (1889–1912).svg|35px]] [[Qing China|Great Qing]] (1900-1912)
 *** [[File:Yihetuan flag.png|35px]] [[Boxers (group)|Society of the Righteous and Harmonious Fists]] (1900-1901)
-*** [[File:Flag of China (1912–1928).svg|35px]] [[Republic of China (1912–1949)|Republic of China]] (1912-1915) (1916-1928)
+*** [[File:Flag of China (1912–1928).svg|35px]] [[Beiyang government|First Republic of China]] (1912-1915) (1916-1928)
 *** [[File:Flag of the Empire of China (1915–1916).svg|35px]] [[Empire of China (1915–1916)|Empire of China]] (1915-1916)
 *** [[File:Flag of the Empire of China (1916).svg|35px]] [[Empire of China (1915–1916)|Empire of China]] (1916)