Which countries formed the allied side in World War II?

The countries who formed the Allies during World War II (1939-1945) included the major powers of the United States (starting in 1941), the United Kingdom, and the Soviet Union (the Soviets had aided the Nazis in the partition of Poland and then joined the Allies after the Germans invaded them in 1941). The Allies were joined by the British Commonwealth countries, including Canada, Australia, South Africa, and New Zealand. Other countries on the allied side included China, Poland (which was defeated by the Nazis in 1939), France (defeated by the Nazis in 1940; later, the Free French fought with the Allies), British India, Yugoslavia, and Greece. The other side, the Axis powers, included the countries in the Tripartite Pact: Nazi Germany, Italy, and Japan. They were joined by other countries, including Hungary, Bulgaria, and Romania.