Which countries were the main Allied Powers during World War II?

The main Allied Powers during World War II were indeed the United States, the United Kingdom, and the Soviet Union. This coalition played a pivotal role in opposing the Axis Powers, which included Germany, Italy, and Japan.

The collaboration among these three nations brought together significant military and economic resources. The United States contributed industrial might and manpower, the United Kingdom offered strategic military leadership and intelligence, and the Soviet Union engaged in massive land battles on the Eastern Front, which were crucial for turning the tide against Nazi Germany.

This alliance was formalized in various agreements and treaties, including the Atlantic Charter, which outlined their goals for the post-war world. The unity among these nations, despite differing political ideologies and national interests, was essential for coordinating military efforts and resources to defeat a common enemy.

While other nations like France, China, Canada, Australia, New Zealand, and India also contributed to the war effort, they were not among the primary leaders of the Allied Powers in the same way as the United States, the United Kingdom, and the Soviet Union.