Countries Involved
- Albania: Germany occupied Albania in 1943
- American Samoa: U.S. Navy Base and territory
- Andorra: Smuggling route between Spain and Vichy France, Escape route for fleeing Germans
- Argentina: Export of supplies and agricultural products
- Armenia: Provided weapons and fixed airplanes
- Australia: More than one million men served in the war
- Austria: Full part of Nazi Germany from 1938-1955
- Azerbaijan: Production of oil industry equipment, during war was part of Soviet Union
- Bahrain: Declared war on Germany
- Belarus: Part of the Soviet Union, Byelorussian SSR
- Belgium: Produced large amounts of raw materials, economic asset
- Bolivia: Joined the Allies in 1943, supplied Tin
- Brazil: In 1942 joined the Allies, sent 25,700 troops to Europe
- Bulgaria: Signed armistice in 1944 with the Allies
- Canada: Part of Allies, sent 167,000 aircrews to Europe
- Caribbean Islands: Supplies ports, cargo ships
- Ceylon (Now known as Sri Lanka): Rubber Producers
- Chile: In 1945 declared war on Japan, last country to join the war
- China (Republic of China): in 1941 joined Allies and declared war on Germany, 3.2 million deaths from the Chinese Nationalists Army
- Colombia: Petroleum production, Provided carbon for heating Europe, Provided nestle products such as coffee and baby food
- Costa Rica: In 1941 joined the Allies, declared war on Japan, Germany, and Italy
- Croatia: Joined the Axis Powers in 1941
- Cuba: Joined the Allies in 1941, Cuban Warships
- Cyprus: Infantry, Mechanical Transportation, and Pack Transport companies
- Czech Republic (Czechoslovakia) : Western part-In 1940 was recognized as Allies
- Denmark: Occupied by Germany
- Dominican Republic: 112 Dominicans joined in with the U.S. Army
- Dutch East Indies: Oil Resources
- Ecuador: Joined the Allies, Allowed U.S. a spot for a Navel Base
- Egypt: Importance to Axis and Allies due to the Suez Canal
- El Salvador: Economic connections with the U.S.
- Estonia: Occupied by Germany from 1941-1944, Occupied by USSR from 1944-1991
- Ethiopia: Joined the Allies
- Fiji: Served with New Zealand Army Formations as a Allie
- Finland: Attacked by Soviet Union, in 1944 made an alliance with Nazi Germany
- France: In 1940 was one of the first countries to declare war with Germany, however ended the war in 1944 as an ally to Germany
- Free French Forces (FFF) : More than 1,300,000 troops helped to liberate France
- Vichy France: Unoccupied section of France that contained the French Government, attacked by Allies
- Georgia: 700,000 Georgian SSR officers and soldiers, Fought for the Axis Powers
- Germany: Nazi Germany controlled by Adolf Hitler was the main source of the Axis Powers
- Gibraltar: British overseas territory, "the rock"
- Greece: First victory for the Allies in 1940, later became occupied by Germany
- Guatemala: Joined Allies in 1941
- Guernsey: Channel Islands of Britain that were occupied by Germany
- Haiti: Provided food supplies for the Allies
- Honduras: Provided food supplies and raw materials for the Allies
- Hong Kong: Controlled by Japanese until 1945
- Hungary: Ally to Germany
- Iceland: Provided Naval and Air Bases for the Allies, but stayed neutral through the war
- India: Partially occupied by Brittan and partially occupied by Japan, many Indians chose to fight with the Axis Powers
- Andaman & Nicobar Islands: Fought with the Japanese until 1945 when occupied by Britain
- Indonesia: Oil Resources
- Iran: Oil Resources
- Iraq: Oil Resources
- Ireland: Shot down 32 Axis planes
- Isle of Man: Detention camp for Axis citizens, Naval Bases, radar network , and training stations
- Italy: Most of Italy was controlled by Germany, while a small portion made an armistice with the Allies
- Japan: Leader of Axis Powers in the Pacific Theatre
- Jersey: Channel Islands occupied by Germany
- Korea: Under Japanese Rule until 1945
- Laos: Japanese Occupied
- Latvia: Took part with the Nazi's and Soviets during the Holocaust
- Lebanon: Under French control
- Liberia: Rubber source for the Allies
- Liechtenstein: Ally with Switzerland
- Lithuania: Occupied by the Soviet Union
- Luxembourg: Under German control until 1944
- Macau: Neutral territory, belonging to Portugal
- Malaya: Occupied by Japan from 1942 to 1945
- Malta: British Colony
- Manchukuo: From 1931 to 1945 country was a puppet state to Japan
- Mexico: Served with U.S. Fifth Air Force
- Monaco: German occupied
- Mongolia: Allies with the Soviet Union, Gained independence from China
- Morocco: Fought along with the Allies after 1942
- Nauru: Phosphate Mining Operations (Ammunition and fertilizer)
- Nepal: Offered troops to the United Kingdom
- Netherlands: Oil refinery, fought with the Allies
- Newfoundland: Fought alongside Canada and the U.S.
- New Zealand: One of the first to declare war on Germany
- Nicaragua: Fought alongside Somoza (an ally to the U.S.)
- Northern Ireland: Provided food, man power, and military equipment to the Allies
- Northern Rhodesia: British colony
- Norway: Transport of iron ore, Large shipping country
- Oman: Fought under British forces
- Palestine: Under the British Mandate System
- Panama: Panama Canal Zone, allowed quick movement of warships and troops
- Paraguay: Aided by the U.S., declared war on Germany in 1945
- Peru: Production of aviation fuel
- Philippines: Commanded by the U.S.
- Poland: Polish pilots integrated with the British forces
- Portugal: Jews fled to Lisbon
- Portuguese Timor: Japanese invaded
- Romania: Oil resources
- Samoa: Declared war on Germany in 1939
- San Marino: Maintained neutrality, Strong ties with Italy
- Saudi Arabia: Supplied Allies with oil resources
- Singapore: Location for shipping routes
- Slovakia: Captured by Germany several times throughout the war
- South Africa: Fought for Allies, provided aircrews
- Southern Rhodesia: Served under British command
- Soviet Union: Supported Germany, provided many manufacture war tanks
- Spain: Sent troops to fight alongside Germany
- Sweden: Remained Neutral, Some Swedish volunteers
- Switzerland: Strong Military, mountainous terrain
- Syria: Under French control
- Thailand: Remained an ally with Japan throughout the most of the war
- Tonga: Supported the Allies
- Transjordan: Under British command
- Turkey: Remained neutral until seven months before the end of the war when Turkey joined the Allies
- United Kingdom: One of the original Allies
- United States of America: Gave assistance and aide to the Allies
- Uruguay: Joined the Allies
- Vatican City: Refugee site for Jews
- Venezuela: Provided oil supplies for the Allies
- Yemen: Alliance with Italy
- Yugoslavia: Occupied by the Axis Powers