(17 July-2 August 1945) Conference of the 'Big Three' Allied powers held after the end of World War II, attended by Joseph Stalin, Harry Truman and Winston Churchill (who was replaced on 28 July by Clement Attlee following the Labour Party's victory in a British general election). It was agreed that Germany was to be preserved as a unified state (although subsequent Cold War rivalry prevented this), and that territory in eastern Germany would be transferred to Poland as compensation for realigning the Polish-Soviet border along the Curzon line.