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.

Go on to the World War II Wikipedia page and you will find that it will only list the Allies and Axis as combatants and only list the main allied and axis leaders.

before you see the list.

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

Allies

See the main article: Allies of World War II

1937

China (from July 1937)

• Nationalists
• Communists

1939

Poland (from September 1939)

• Polish Partisans

France (from September 1939)

• FTR (until 1940)
• Free France (from 1940-1944)
  • Free French Forces
• PGFR (from 1944)
• Algeria
• Morocco
• Tunisia
• Syria
• Fr. Somaliland
• Lebanon
• French Indochina
• Fr. Guiana
• Madagascar
• French partisans
• French-occupied Germany and Austria (from June 1945)

British Empire (from September 1939)

• United Kingdom
• India
• New Zealand
• Palestine
• Newfoundland
• Burma
• Malaya
• Guiana
• Belize
• Jamaica
• Br. Somaliland
• Br. Guiana
• Kuwait
• Falklands
• Sudan
• Gibraltar
• Hong Kong
• Tonga
• Nigeria
• Malta
• Ceylon
• British-occupied Germany and Austria (from June 1945)

Australia (from September 1939)

Nepal (from September 1939)

South Africa (from September 1939)

Canada (from September 1939)

Oman (from September 1939)

1940

Denmark (9 April 1940)

Norway (from April 1940)

Luxembourg (from May 1940)

Netherlands (from May 1940)

• Dutch East Indies
• Du. Guiana

Belgium (from May 1940)

• Congo

Greece (from October 1940)

• Greek partisans

1941

Yugoslavia (from April 1941)

• Yugoslav Partisans
• Democratic Federal Yugoslavia (from November 1943)
• Provisional Government (from March 1945)

Viet Minh (from May 1941)

Union of Soviet Socialist Republics (from June 1941)

• Russia
• Ukraine
• Belarus
• Provisional National Government (from December 1944)
• Polish People's Army
  • Polish Army in the East
• Polish Committee of National Liberation (from July 1944 - December 1944)
• Provisional Government of the Republic of Poland (from December 1944 - June 1945)
• Provisional Government of National Unity (from June 1945)
• Soviet partisans
• Soviet-occupied Germany and Austria (from June 1945)
• Mongolia (from August 1945)

Ethiopia (from November 1941)

Panama (from December 1941)

United States (from December 1941)

• Commonwealth of the Philippines
• Guam
• Puerto Rico
• Greenland (taken after the German invasion of Denmark)
• Hawaii
• Alaska
• US-occupied Germany and Austria (from June 1945)

Cuba (from December 1941)

Costa Rica (from December 1941)

Nicaragua (from December 1941)

Honduras (from December 1941)

El Salvador (from December 1941)

Haiti (from December 1941)

Dominican Republic (from December 1941)

Guatemala (from December 1941)

Provisional governments or governments-in exile that declared war against the Axis in 1941

Provisional Government of the Republic of Korea (from December 1941)

Czechoslovakia (government-in-exile) (from December 1941)

• Czechoslovak Partisans

1942

Mexico (from May 1942)

Brazil (from August 1942)

1943

Iraq (from January 1943)

Bolivia (from April 1943)

Italy (from September 1943)

• Italian partisans

Iran (From September 1943)

Colombia (from November 1943)

1944

Liberia (from January 1944)

Romania (from August 1944)

Bulgaria (from September 1944)

Finland (from September 1944)

Albania (from October 1944)

• Albanian partisans

1945

Ecuador (from February 1945)

Paraguay (from February 1945)

Peru (from February 1945)

Uruguay (from February 1945)

Venezuela (from February 1945)

Turkey (from February 1945)

Egypt (from February 1945)

• Sudan

Saudi Arabia (from March 1945)

Argentina (from March 1945)

Chile (from April 1945)

Axis

See the main article: Axis powers

1937

Japan (from July 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)
• Vietnam (Empire of Vietnam) (1945)

1939

Germany (from September 1939-May 1945)

• Slovakia (1939-1945)
• French State (1940-1942/1944)
• Croatia (1941-1945)
• Italian Social Republic (1943-1945)
• Albania (1943-1944)
• Hungary (1944-1945)

1940

Italy (from June 1940-September 1943)

• Italian Libya (1934-1943)
• East Africa (1937-1941)
• Albania (1939-1943)

Hungary (from November 1940)

Romania (from November 1940-August 1944)

1941

Bulgaria (from March 1941-September 1944)

Yugoslavia (25 - 27 March 1941)

Iraq (2 - 31 May 1941)

Finland (from June 1941-September 1944)

Thailand (from December 1941)

Neutral

Switzerland

Lithuania (annexed by the USSR in 1940)

Latvia (annexed by the USSR in 1940)

Estonia (annexed by the USSR in 1940)

Ireland

Spain

• Río de Oro
• Morocco

Portugal

• Angola
• Mozambique
• Timor (invaded by the Japanese in 1942)
• Goa

Sweden

Yemen

Afghanistan

Tibet

Bhutan

Andorra

Monaco

Liechtenstein

Vatican City

San Marino

Iceland

Sikkim

Tuva (Soviet satellite state, annexed by the USSR in 1944)

Xinjiang (annexed by China in 1944)

East Turkestan