What were the three main Allied powers known as the big three in world war 2?

The three main Allied powers known as the "Big Three" during World War II were the United States, the United Kingdom, and the Soviet Union. These leaders—Franklin D. Roosevelt, Winston Churchill, and Joseph Stalin—coordinated military strategies and post-war plans to defeat the Axis powers. Their collaboration was crucial in securing victory, despite differing ideologies and post-war goals. The unity among the Big Three played a significant role in shaping the course of the war and the subsequent geopolitical landscape.