The ________________ was the name for the three leaders who met at Tehran, Yalta, and Potsdam to determine the outcome of WWII.

The "Big Three" was the name for the three leaders who met at Tehran, Yalta, and Potsdam to determine the outcome of WWII. This refers to the leaders of the three major Allied powers at the time: Josef Stalin of the Soviet Union, Franklin D. Roosevelt (and later Harry S. Truman) of the United States, and Winston Churchill (and for a time Clement Attlee) of the United Kingdom. These conferences were pivotal in deciding the post-war reorganization of Europe and the world.

Extra: The meetings of the Big Three at Tehran, Yalta, and Potsdam were crucial in shaping the post-war world. The Tehran Conference in 1943 was the first meeting of the Big Three and set the direction for the final strategy against Nazi Germany. The Yalta Conference in February 1945 addressed many issues concerning the post-war reorganization of Europe, including the division of Germany and the establishment of the United Nations. After the death of Roosevelt, the Potsdam Conference in July-August 1945 was the last of the three meetings; it was attended by Harry S. Truman in place of Roosevelt and Clement Attlee in place of Churchill, after the UK election. These conferences addressed issues such as the borders of post-war Europe, the handling of war reparations, and the management of defeated nations, like Germany and Japan. The outcomes of these conferences significantly shaped international politics and led to the beginning of the Cold War division between the Eastern and Western blocs.