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.

the main countries are in Bold
the list starts in 1937 and not 1939

Allies

British prime minister Winston Churchill, US president Franklin D. Roosevelt, and soviet leader Joseph Stalin at the Yalta Conference in February 1945

Main page: Allies of World War II

1937

Celebration of the signing of the Tripartite Pact in Tokyo

Japan (from July 7 1937)

Manchukuo (1931-1945)
East Hebei Autonomous Government (1935-1938)
Template:Country data Provisional Government of the Republic of China (1937–1940) (1937-1940)
Template:Country data Mengjiang (1939-1941)
Recognised National Government of China (1940-1945)
State of Burma (1943-1945)
Azad Hind (1943-1945)
Template:Country data Second Philippine Republic (1943-1945)
Empire of Vietnam (1945)
Kingdom of Kampuchea (1945)
Kingdom of Luang Prabang (1945)

1939

Germany (from September 1 1939-May 8 1945)

Protectorate of Bohemia and Moravia (1939-1945)^[1]
Slovakia (1939-1944/1945)^[2]
General Government (1939-1945)^[3]
French State (1940-1942/1944)^[4]^[5]
Croatia (1941-1945)^[6]
Nedić's Serbia (1941-1944)
Hellenic State (1941-1944)^[7]
Quisling Regime (1942-1945)^[8]
Italian Social Republic (1943-1945)
Albania (1943-1944)
Montenegro (1943-1944)
Macedonia (1944)
Hungary (1944-1945)^[9]
Reichskommissariat Norwegen (1940-1945)^[10]
Reichskommissariat Niederlande (1940-1945)
Reichskommissariat Belgien-Nordfrankreich (1944)
Reichskommissariat Ostland (1941-1945)
Reichskommissariat Ukraine (1941-1945)

1940

Italian Empire (from June 10 1940-September 8 1943)

Italy^[11]
Italian Libya (1934-1943)
East Africa (1937-1941)
Albania (1939-1943)
Croatia (1941-1943)^[12]
Hellenic State (1941-1943)^[13]
Montenegro (1941-1943)

Hungary (from November 20 1940-April 4 1945)^[14]

Romania (from November 23 1940-August 25 1944)^[15]

1941

Bulgaria (from March 1 1941-September 9 1944)^[16]

Yugoslavia (March 25 - 27 1941)^[17]

Chetniks (1941-1945)^[18]

Template:Country data Kingdom of Iraq Iraq (May 2 - 31 1941)

Finland (from June 25 1941-September 15 1944)^[19]^[20]

Thailand (from December 8 1941)

1942

Mexico (from May 22 1942)

Fatherland Front (from July 17 1942

Brazil (from August 22 1942)

Australia (from October 9 1942)^[21]

Balli Kombëtar (from November 1942-October 1 1943)^[22]

1943

Balli Kombëtar (from October 1 1943 - 1945)^[23]

1944

Liberia (from January 27 1944)

Romania (from August 25 1944)^[24]

Bulgaria (from September 9 1944)^[25]

Finland (from September 15 1944)^[26]

Albania (from October 20 1944)

Albanian partisans

1945

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)

Template:Country data Kingdom of Egypt (from February 24 1945)

Template:Country data Kingdom of Egypt Sudan^[27]

Saudi Arabia (from March 1 1945)

Argentina (from March 27 1945)

Chile (from April 11 1945)

Axis

Main page: Axis powers

Participated in the war but not part of allied or axis

Union of Soviet Socialist Republics (1939-1941)^[28]

Finland (1939-1940)^[29]

Thailand (1940-1941)

Ukrainian Insurgent Army (1941-1944)^[30]

Organisation of Ukrainian Nationalists (1941-1944)^[31]

Belarusian nationalists (1941-1944)^[32]

Forest Brothers (1944-1945)^[33]

Neutral

Main page: Neutral powers during World War II

Switzerland

Lithuania (annexed by the USSR in 1940)

Latvia (annexed by the USSR in 1940)

Estonia (annexed by the USSR in 1940)

Template:Country data Mutawakkilite Kingdom of Yemen

Afghanistan

Tibet

Template:Country data Danzig

Template:Country data Tuvan People's Republic (Soviet satellite state, annexed by the USSR in 1944)^[39]

Xinjiang (annexed by China in 1944)^[40]

East Turkestan

World War II By Country Media

Albanian partisans fighting against the Germans
Anti-aircraft fire during a German air raid on Free French-held Algiers, 1943
SDF forces enter Piazza Italia after the capture of Tripoli, 1943.
Workers assemble rudders for Bristol Beaufort bombers in Melbourne, 1943.
Free Belgian soldiers training in Wales, 1942
Force Publique soldiers leaving the Congo for the East African campaign
P-47s carried the "Senta a Pua!" [pt] emblem as nose art along with the national insignia of Brazil
Brazilian poster announcing the declaration of war, November 10, 1943

^[41]

References

↑ 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.
↑ Australia gained Self-governance in 1942.
↑ Balli Kombëtar had differences with the Communist LANÇ and later allied with Germany to fight LANÇ in October.
↑ Balli Kombëtar had differences with the Communist LANÇ and later allied with Germany to fight LANÇ in October.
↑ 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.
↑ 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 [en]
↑ 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.

[1] Protectorate and partially-annexed territory of Nazi Germany.

[2] Occupied by Germany after the Slovak National Uprising.

[3] Protectorate and partially-annexed territory of Nazi Germany

[4] 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.

[5] 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).

[6] As a puppet state.

[7] Joint puppet state of Germany and Italy.

[8] Co-existed with Reichskommissariat Norwegen.

[9] Hungary became a German puppet state in 1944 after a pro axis coup (Operation Panzerfaust).

[10] Co-existed with the Quisling Regime from 1942.

[11] 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).

[12] As a protectorate.

[13] Joint puppet state of Germany and Italy.

[14] Hungary became a German puppet state in 1944 after a pro axis coup (Operation Panzerfaust).

[15] 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).

[16] 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).

[17] 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).

[18] 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.

[19] 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.

[20] Joined the allies due a soviet operation that had been going on for months.

[21] Australia gained Self-governance in 1942.

[22] Balli Kombëtar had differences with the Communist LANÇ and later allied with Germany to fight LANÇ in October.

[23] Balli Kombëtar had differences with the Communist LANÇ and later allied with Germany to fight LANÇ in October.

[24] 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).

[25] 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).

[26] Joined the allies due a soviet operation that had been going on for months.

[27] As a condominium of the United Kingdom and the Kingdom of Egypt.

[28] 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.

[29] 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.

[30] Fought against Nazi Germany and the USSR.

[31] Fought against Nazi Germany and the USSR.

[32] Fought against Nazi Germany and the USSR.

[33] Fought against the USSR after German forces were kicked out of the Baltics.

[34] See Blue Division [en]

[35] Occupied by Italy and then Germany from 1942-1944.

[36] Occupied by Germany from 17 - 20 September 1944.

[37] After Denmark fell in 1940, the allies occupied Iceland and in 1944 Iceland gained independence from Denmark.

[38] Declared independence from the Netherlands on 17 August 1945.

[39] Some sources say that Tuva declared war on Germany on June 25th 1941.

[40] In 1937, Xinjiang won independence from china after the Soviets invaded.

[41] The Soviets supplied rebel forces after xinjiang was annexed back into china.

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