Held from 16 July to 2 August 1945 in Potsdam, Germany, the Potsdam Conference was the last conference of the Second World War, with Britain, the Soviet Union and the United States represented. While Joseph Stalin had been involved in all the major conference, Harry S. Truman was new to this level of diplomacy, and, while Winston Churchill began the conference, Britain's representative became Clement Attlee after the Churchill government fell.
It dealt with the Occupation of Germany, the Potsdam Proclamation to Japan, and a secret agreement for the Soviets to go to war against Japan.