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[[File:Potsdam_conference_1945-8.jpg|thumbnail|300px|left|Seated - British Prime Minister Clement Attlee; U.S. President Harry S. Truman; Soviet Premier Joseph Stalin. Standing - Fleet Admiral William D. Leahy, USN, Truman's Chief of Staff; British Foreign Minister Ernest Bevin; U.S. Secretary of State James F. Byrnes; Soviet Foreign Minister Vyacheslav Molotov]]
The last meeting of the "Big Three" occurred at Potsdam in July 1945, where the tension that would erupt into the cold war was evident. Despite the end of the war in Europe and the revelation of the existence of the atomic bomb to the Allies, neither President Harry Truman, Roosevelt's successor, nor Clement Atlee, who mid-way through the conference replaced Churchill, could come to an agreement with Stalin on any but minor issues.