World War II by country

This is a list of all the participants of the Second World War on both the allied and axis side.
Almost every country participated in World War II. A few countries managed to remain neutral to the end. It was the deadliest war ever in history with 70-85 million casualties. The war was fought by two alliances fighting against each other. The Axis powers led by the Japanese Empire, Nazi Germany, and Fascist Italy. And the Allied powers led by the Nationalist government of the Republic of China, Free France, the United Kingdom, the Soviet Union, and the United States.
before you see the list.
Allies
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1937
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China (from July 7 1937)
1939
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Republic of Poland (from September 1 1939)[1]
French Empire (from September 3 1939)[3]
FTR (until July 10 1940)[4]
Free France (from June 18 1940- June 3 1944)
GPRF (from June 3 1944)
Algeria
Morocco
Tunisia
Syria
Fr. Somaliland
Lebanon
Fr. Indochina
Fr. Guiana
Madagascar
Equatorial Africa
West Africa
Equatorial Africa
Fr. India
Îles des Saintes
Marie-Galante
La Désirade
Guadeloupe
Martinique
Saint Pierre and Miquelon
Collectivity of Saint Martin
Saint Barthélemy
Clipperton Island
Mayotte
Scattered Islands
Comoros
Réunion
Fr. Polynesia
New Caledonia
New Hebrides[5]
Wallis and Futuna
French partisans (until October 1944)
FFI (from June 1944-1945)
Libya[6]
French-occupied Germany and Austria (from June 1945)
British Empire (from September 3 1939)
United Kingdom
Br. India
Australia[7]
New Zealand
Palestine
Newfoundland
Burma
Malaya
Br. Honduras
Jamaica
Br. Somaliland
Br. Guiana
Kuwait
Transjordan
Falklands
Sudan[8]
Gibraltar
Hong Kong
Tonga
Nigeria
Malta
Ceylon
Gold Coast
Kenya Colony
Gambia
Bechuanaland
Uganda
Sierra Leone
Northern Rhodesia
Southern Rhodesia
Nyasaland
Swaziland
Basutoland
Oman
Sarawak
North Borneo
Brunei
Labuan
Aden
Bahamas
Bahrain
Basutoland- Bhutan[9]
Leeward Islands
Western Pacific Territories
Windward Islands
Canton and Enderbury Islands[10]
Ceylon
Cyprus
Faroe Islands (taken after the German invasion of Denmark)
Guernsey
Heard Island and McDonald Islands
Isle of Man
Jersey
Johor
Kedah
Kelantan
Labuan
Maldives Islands
Mauritius
Perlis
Saint Helena
Seychelles
Sikkim
Singapore
South Orkney Islands
South Shetland Islands
Straits Settlements
Suez Canal
Terengganu
Tientsin
Trinidad and Tobago
Trucial States
Zanzibar
Solomon Islands
Fiji
New Hebrides[11]
Iceland (taken after the German invasion of Denmark, later replaced with Canadian forces)
Balkan Air Force
SOE[12]
Eritrea[13]
It. Somaliland[14]
Libya[15]
British-occupied Germany and Austria (from June 5 1945)
Nepal (from September 4 1939)
South Africa (from September 6 1939)
Canada (from September 10 1939)
Iceland (Replaced occupying British forces, then replaces with American forces)
1940
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Norway (from April 8 1940)[16]
Greenland (Occupied by the US after the German invasion of Denmark)
Faroe Islands (Occupied by the UK after the German invasion of Denmark)
Iceland (Occupied by the allied powers after the German invasion of Denmark, gained independence in 1944)
Danish partisans
Luxembourg (from May 10 1940)[18]
Dutch Empire (from May 10 1940)
Belgian Empire (from May 10 1940)
1941
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Yugoslavia (from April 6 1941)[22][23]
Yugoslav Partisans
Democratic Federal Yugoslavia (from November 29 1943)
Yugoslav Committee of National Liberation (from November 29 1943-March 7 1945)
Provisional Government of the Democratic Federal Yugoslavia (from March 7 1945)[24]
Viet Minh (from May 19 1941)[26]
Union of Soviet Socialist Republics (from June 22 1941)[27]
Russia
Ukraine
Belarus
Kampfgruppen[29]
Provisional National Government (from December 26 1944)[33]
Polish partisans[34]
Polish People's Army[37]
Polish Committee of National Liberation (from July 22 1944-December 31 1944)
Provisional Government of the Republic of Poland (from December 31 1944-June 28 1945)
Provisional Government of National Unity (from June 28 1945)
Soviet partisans
Soviet-occupied Germany and Austria (from June 5 1945)
Mongolia (from August 10 1945)
Ethiopia (from November 27 1941)[38]
Panama (from December 7 1941)
United States (from December 8 1941)
Commonwealth of the Philippines[39]
Guam
Puerto Rico
Greenland (taken after the German invasion of Denmark)
Hawaii
Alaska
American Samoa
Baker Island
Bonin Island
Canton and Enderbury Islands[40]
Clipperton Island
Howland Island
Jarvis Island
Johnston Atoll
Kingman Reef
Midway Atoll
Navassa Island
Palmyra Atoll
Panama Canal Zone
US Virgin Islands
Iroquois[41]
Iceland (replaced occupying Canadian forces)
US-occupied Germany and Austria (from June 5 1945)
Costa Rica (from December 8 1941)
Nicaragua (from December 8 1941)
Honduras (from December 8 1941)
El Salvador (from December 8 1941)
Haiti (from December 8 1941)
Dominican Republic (from December 8 1941)
Cuba (from December 9 1941)
Guatemala (from December 9 1941)
Provisional governments or governments-in exile that declared war against the Axis in 1941
Provisional Government of the Republic of Korea (from December 10 1941)
Czechoslovak government-in-exile (from December 16 1941)[42]
1942
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Mexico (from May 22 1942)
Fatherland Front (from July 17 1942)
Brazil (from August 22 1942)
Australia (from October 9 1942)[43]

Balli Kombëtar (from November 1942-October 1 1943)[44]
1943
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Iraq (from January 16 1943)[45]
Bolivia (from April 7 1943)
Colombia (from July 26 1943)
1944
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Liberia (from January 27 1944)
Romania (from August 25 1944)[48]
Bulgaria (from September 9 1944)[49]
Finland (from September 15 1944)[50]
Albania (from October 20 1944)
1945
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Ecuador (from February 2 1945)
Paraguay (from February 7 1945)
Peru (from February 12 1945)
Uruguay (from February 15 1945)
Venezuela (from February 15 1945)
Turkey (from February 23 1945)
Egypt (from February 24 1945)
Saudi Arabia (from March 1 1945)
Argentina (from March 27 1945)
Chile (from April 11 1945)
Axis
[change | change source]1937
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Japan (from July 7 1937)
Manchukuo (1931-1945)
East Hebei Autonomous Government (1935-1938)
Provisional Government of the Republic of China (1937-1940)
Mengjiang (1939-1941)
Recognised National Government of China (1940-1945)
State of Burma (1943-1945)
Azad Hind (1943-1945)
Second Philippine Republic (1943-1945)
Empire of Vietnam (1945)
Kingdom of Kampuchea (1945)
Kingdom of Luang Prabang (1945)
1939
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Germany (from September 1 1939-May 8 1945)
Bohemia and Moravia (1939-1945)[52]
Slovakia (1939-1944/1945)[53]
General Government (1939-1945)[54]
French State (1940-1942/1944)[55][56]
Croatia (1941-1945)[57]
Nedić's Serbia (1941-1944)
Hellenic State (1941-1944)[58]
Quisling Regime (1942-1945)[59]
Italian Social Republic (1943-1945)
Albania (1943-1944)
Montenegro (1943-1944)
Macedonia (1944)
Hungary (1944-1945)[60]
Reichskommissariat Norwegen (1940-1945)[61]
Reichskommissariat Niederlande (1940-1945)
Reichskommissariat Belgien-Nordfrankreich (1944)
Reichskommissariat Ostland (1941-1945)
Reichskommissariat Ukraine (1941-1945)
1940
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Italian Empire (from June 10 1940-September 8 1943)
Italy[62]
Italian Libya (1934-1943)
East Africa (1937-1941)
Albania (1939-1943)
Croatia (1941-1943)[63]
Hellenic State (1941-1943)[64]
Montenegro (1941-1943)
1941
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Bulgaria (from March 1 1941-September 9 1944)[67]
Yugoslavia (March 25 - 27 1941)[68]
Iraq (May 2 - 31 1941)
Finland (from June 25 1941-September 15 1944)[70][71]
Thailand (from December 8 1941)
1943
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Balli Kombëtar (from October 1 1943 - 1945)[72]
Participated in the war but not part of the allied powers or axis powers
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Union of Soviet Socialist Republics (1939-1941)[73]
Ukrainian Insurgent Army (1941-1944)[75]

Organisation of Ukrainian Nationalists (1941-1944)[76]
Belarusian nationalists (1941-1944)[77]
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Forest Brothers (1944-1945)[78]
Neutral
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Lithuania (annexed by the USSR in 1940)
Latvia (annexed by the USSR in 1940)
Estonia (annexed by the USSR in 1940)
Portugal
Angola
Mozambique
Timor (invaded by the Japanese in 1942)
Pt. India
Cape Verde
Macau
São Tomé and Príncipe
Tuva (Soviet satellite state, annexed by the USSR in 1944)[84]
References
[change | change source]- ↑ As a government-in-exile after the Invasion of Poland in 1939.
- ↑ Non-communist partisans.
- ↑ When France fell to Germany, almost all of the french colonies became colonies to the puppet state Vichy France. All the colonies were liberated by the allies from 1940-1943 (except for French Indochina who was invaded by Japan in 1940).
- ↑ With the formation of Vichy France.
- ↑ As a condominium of the French Third Republic and the United Kingdom.
- ↑ Occupied by the french from 1942 to 1951.
- ↑ Australia gained Self-governance in 1942.
- ↑ As a condominium of the United Kingdom and the Kingdom of Egypt.
- ↑ under British suzerainty.
- ↑ As a condominium of the United Kingdom and the United States.
- ↑ As a condominium of the French Third Republic and the United Kingdom.
- ↑ The SOE helped resistance movements all across Axis-occupied Europe.
- ↑ Occupied after the end of the East African Campaign.
- ↑ Occupied after the end of the East African Campaign.
- ↑ Occupied after the end of the North African Campaign.
- ↑ As a government-in-exile after the German invasion of Norway in 1940 untill the liberation of Norway in 1945.
- ↑ Denmark was invaded by Germany in 6 hours on 9 April 1940. on 4 May 1945, German forces in Denmark surrendered to the British. Officially liberating Denmark from Germany.
- ↑ As a government-in-exile after the invasion in 1940 until the liberation of Luxembourg in 1944.
- ↑ As a government-in-exile after the invasion in 1940 until the liberation of the Netherlands in 1945.
- ↑ As a government-in-exile after the invasion in 1940 until the liberation of Belgium in 1944.
- ↑ A a government-in-exile after the invasion in 1941 until the liberation of Greece in 1944.
- ↑ Joined the allies due to a coup against the axis and formed an allied government (and then being invaded by the axis the next month).
- ↑ As a government-in-exile after the Invasion of Yugoslavia in 1941 until joining the Yugoslav Committee of National Liberation to form the Provisional Government of the Democratic Federal Yugoslavia in 1945.
- ↑ Merger of the Yugoslav government-in-exile and the Yugoslav Committee of National Liberation.
- ↑ At the start of the occupation, the Chetniks fought with the Yugoslav Partisans against the Axis Powers. But in late 1941, the Chetniks started to collaborate with the axis against Tito’s partisans. And they continued to do so until the end of the war.
- ↑ Democratic Republic of Vietnam declared on 2 September 1945 (the same day World War II ended).
- ↑ Before Operation Barbarossa in 1941, the Soviets invaded Poland in 1939. 2 weeks after Germany invaded. Then the Soviets invaded Finland a few months later (but they didn’t annex all of Finland). Then the Soviets annexed Lithuania, Latvia, Estonia, and Bessarabia in august 1940.
- ↑ Willy Wolff (1976) [1973]. An der Seite der Roten Armee На стороне Красной армии.
- ↑ Kampfgruppen was an Anti-fascist resistance group formed in the USSR and some time engaged in battles with the Red Army[28]
- ↑ Gosztony, Peter. Stalins Fremde Heere, Bernard & Graefe Verlag, 1991. ISBN 3-7637-5889-5
- ↑ Иностранные войска, созданные Советским Союзом для борьбы с нацизмом (in Russian). Центрполиграф. 2024. ISBN 9785046032826.
- ↑ https://theorangefiles.hu/the-provisional-national-government-1945/
- ↑ Debrecen government operated in the Soviet-occupied territory of Hungary, while the Nazi-backed government in Budapest continued the war on the side of Germany.[30][31][32].
- ↑ Communist partisans.
- ↑ From 6 January 1942 – 1 January 1944.
- ↑ From 1 January 1944 – 29 July 1944.
- ↑ From May 1943.
- ↑ After being liberated by the British in 1941.
- ↑ As a government-in-exile after the invasion in 1941 until the liberation of the Philippines in 1945.
- ↑ As a condominium of the United Kingdom and the United States.
- ↑ The Iroquois Confederacy was the only Native American nation to have officially declared war on the Axis powers separately from the United States.
- ↑ The Czechoslovak government would return to Czechoslovakia after the country’s liberation in 1945.
- ↑ Australia gained Self-governance in 1942.
- ↑ Balli Kombëtar had differences with the Communist LANÇ and later allied with Germany to fight LANÇ in October.
- ↑ At this point, Iraq was occupied by the British after an invasion in 1941.
- ↑ At this point Iran was occupied by the allies after an allied invasion in 1941 to protect the supply line that went through Iran.
- ↑ Joined the allies due to the allied invasion that month. A few months earlier Mussolini was deposed from power. Italy signed peace with the allies and formed in allied government (and going under allied occupation).
- ↑ Joined the allies due to the Soviet operation in august. With Ion Antonescu (the leader of Romania) being arrested and Romania forming an allied government (and going under Soviet occupation).
- ↑ Joined the allies due to the soviet invasion in September. With a coup by the Bulgarian resistance and Bulgaria forming an allied government (and going under Soviet occupation).
- ↑ Joined the allies due a soviet operation that had been going on for months.
- ↑ As a condominium of the United Kingdom and the Kingdom of Egypt.
- ↑ Protectorate and partially-annexed territory of Nazi Germany.
- ↑ Occupied by Germany after the Slovak National Uprising.
- ↑ Protectorate and partially-annexed territory of Nazi Germany
- ↑ During operation torch, (the allied invasion of french North Africa) the axis invaded Vichy France. But Pétain stayed in power until 1944 when France was liberated by the allies.
- ↑ When France fell to Germany, almost all of the french colonies became colonies to the puppet state Vichy France. All the colonies were liberated by the allies from 1940-1943 (except for French Indochina who was invaded by Japan in 1940).
- ↑ As a puppet state.
- ↑ Joint puppet state of Germany and Italy.
- ↑ Co-existed with Reichskommissariat Norwegen.
- ↑ Hungary became a German puppet state in 1944 after a pro axis coup (Operation Panzerfaust).
- ↑ Co-existed with the Quisling Regime from 1942.
- ↑ Joined the allies due to the allied invasion that month. A few months earlier Mussolini was deposed from power. Italy signed peace with the allies and formed in allied government (and going under allied occupation).
- ↑ As a protectorate.
- ↑ Joint puppet state of Germany and Italy.
- ↑ Hungary became a German puppet state in 1944 after a pro axis coup (Operation Panzerfaust).
- ↑ Joined the allies due to the Soviet operation in august. With Ion Antonescu (the leader of Romania) being arrested and Romania forming an allied government (and going under Soviet occupation).
- ↑ Joined the allies due to the soviet invasion in September. With a coup by the Bulgarian resistance and Bulgaria forming an allied government (and going under Soviet occupation).
- ↑ Joined the allies due to a coup against the axis and formed an allied government (and then being invaded by the axis the next month).
- ↑ At the start of the occupation, the Chetniks fought with the Yugoslav Partisans against the Axis Powers. But in late 1941, the Chetniks started to collaborate with the axis against Tito’s partisans. And they continued to do so until the end of the war.
- ↑ Before Operation Barbarossa in 1941, Finland was involved in the Winter War with the Soviets in 1939 and lost some land to them. And Finland was never officially part of the axis powers.
- ↑ Joined the allies due a soviet operation that had been going on for months.
- ↑ Balli Kombëtar had differences with the Communist LANÇ and later allied with Germany to fight LANÇ in October.
- ↑ Before Operation Barbarossa in 1941, the Soviets invaded Poland in 1939. 2 weeks after Germany invaded. Then the Soviets invaded Finland a few months later (but they didn’t annex all of Finland). Then the Soviets annexed Lithuania, Latvia, Estonia, and Bessarabia in august 1940.
- ↑ Before Operation Barbarossa in 1941, Finland was involved in the Winter War with the Soviets in 1939 and lost some land to them. And Finland was never officially part of the axis powers.
- ↑ Fought against Nazi Germany and the USSR.
- ↑ Fought against Nazi Germany and the USSR.
- ↑ Fought against Nazi Germany and the USSR.
- ↑ Fought against the USSR after German forces were kicked out of the Baltics.
- ↑ See Blue Division
- ↑ Occupied by Italy and then Germany from 1942-1944.
- ↑ Occupied by Germany from 17 - 20 September 1944.
- ↑ After Denmark fell in 1940, the allies occupied Iceland and in 1944 Iceland gained independence from Denmark.
- ↑ Declared independence from the Netherlands on 17 August 1945.
- ↑ Some sources say that Tuva declared war on Germany on June 25th 1941.
- ↑ In 1937, Xinjiang won independence from china after the Soviets invaded.
- ↑ The Soviets supplied rebel forces after xinjiang was annexed back into china.