Countries Involved in World War Two 2021

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World War II started in 1939 and ended in 1945. On September 1, 1939, German troops invaded Poland and Hitler was confronted by France and Britain. War erupted two days later. The war lasted until September 2, 1945, known as V-J Day. More than 100 million people from 30 nations participated in the war, resulting in anywhere from 70 million to 85 million civilian and military casualties. World War II was the deadliest war in history. Leading up to the war, many countries tried remaining neutral. However, as conflict arose, countries gradually began choosing sides. Countries either joined the Axis Powers or the Allied Powers.

Allied Powers

The chief Allied Powers were Great Britain, France, and the United States. At the start of World War II in 1939, the Allies were France, Poland, and the United Kingdom. Days later, the independent Great Britain dominions of Australia, Canada, New Zealand, and South Africa joined. As the war continued, several other countries began joining the Allies. The Allied Powers generally included all 26 original signatories of the Declaration of the United Nations, signed on January 1, 1942.

The countries that were recognized as being Allied Powers in World War II include Australia, Brazil, Canada, New Zealand, South Africa, the Soviet Union, the United Kingdom, and the United States. The Allied Powers has unwavering support from Bolivia, Chile, Colombia, Costa Rica, Cuba, the Dominican Republic, Ecuador, Egypt, El Salvador, Guatemala, Haiti, Honduras, Iraq, Lebanon, Liberia, Mexico, Mongolia, Nicaragua, Panama, Paraguay, Peru, the Republic of China, Saudi Arabia, Turkey, Uruguay, and Venezuela.

Axis Powers

The leading players in the Axis Powers were Japan, the Kingdom of Italy, and Germany. The three main parties that comprised the Axis Powers entered World War II under the Tripartite Treaty. Four other countries ultimately signed the Tripartite Treaty on their terms. Bulgaria co-signed the document on March 1, 1941, and the three European countries of Hungary, Romania, and Slovakia signed the previous year. Hungary signed the treaty on November 20, 1940, and Romania signed three days later. The following day, Slovakia signed the treaty on November 24, 1940. The other countries that eventually followed suit and walked in the footsteps of the top three Axis Powers were Austria, Bulgaris, Ethiopia, Hungary, Romania, and Slovakia.

Other Countries

World War II had many changes in who supported who, and countries went from neutrality to solid support for one side over the other. Here is a list of countries that were either battlegrounds during the war or places that up and switched their support Algeria, Albania, Belgium, Burma, Czechoslovakia, Denmark, Estonia, Finland, France, Greece, Iceland, India, Iran, Latvia, Lithuania, Luxembourg, Morocco, the Netherlands, New Guinea, Norway, the Philippines, Poland, Singapore, Syria, Thailand, Tunisia, and Yugoslavia.

Countries Involved in World War Two 2021

Country 2021 Population
United States332,915,073
Brazil213,993,437
Russia145,912,025
United Kingdom68,207,116
South Africa60,041,994
Canada38,067,903
Australia25,788,215
New Zealand4,860,643

Countries Involved in World War Two 2021