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At Potsdam (July 1945), Allied leaders finalized occupation of defeated Germany, with Truman replacing the deceased Roosevelt. They confirmed the four-power occupation zones, agreed on demilitarization and denazification, set reparations policies, and confirmed Poland's westward shift. The Potsdam Conference established the framework for post-war German division and European order, though Soviet-Western disagreements over reparations, Polish borders, and Eastern European influence already foreshadowed Cold War conflict. The conference ended in ambiguity, with fundamentally incompatible visions of the postwar world left unresolved.
You've already studied the Yalta Conference, where Roosevelt, Churchill, and Stalin sketched the outlines of postwar Europe while the war was still being won. Potsdam, three months later, was where those sketches had to be filled in — except that Roosevelt was dead, the atomic bomb had just been tested, and the wartime alliance was already showing the fractures that would define the Cold War.
The conference at Potsdam (July 17 – August 2, 1945) brought together Harry Truman, Winston Churchill (replaced mid-conference by Clement Attlee after Labour's election victory), and Josef Stalin. Germany had surrendered unconditionally in May. The immediate questions were administrative: how to manage a destroyed country divided into four occupation zones (American, British, French, Soviet) and governed by an Allied Control Council. The conference confirmed the 5 D's as occupation goals — demilitarization, denazification, democratization, decartellization, and deconcentration — that would theoretically govern all four zones uniformly.
Reparations were where agreement broke down most visibly. The Soviet Union, which had suffered approximately 27 million deaths and vast material destruction, demanded massive reparations from Germany. The Western powers, remembering how Versailles' reparations had destabilized Weimar Germany and arguably contributed to Hitler's rise, were reluctant to repeat that mistake. The compromise was a zone-by-zone arrangement: each occupying power would extract reparations from its own zone, with the Soviets also receiving some industrial equipment from the western zones in exchange for food deliveries from the agricultural east. This meant the four zones would develop differently from the start — a structural preview of permanent division.
The conference also confirmed the brutal logic of ethnic unmixing the war had set in motion. Millions of ethnic Germans were to be "transferred" — in practice, expelled — from Poland, Czechoslovakia, and Hungary. Poland's borders shifted dramatically westward: Poland gained former German territories east of the Oder-Neisse line and lost eastern territories to the Soviet Union. The displacement of approximately 12 million Germans from Eastern Europe was the largest forced migration in European history to that point. Potsdam's unresolved tensions — over reparations, Poland's western border, and Soviet influence over Eastern European governments — made the Cold War not an accident but a nearly inevitable continuation of the wartime disagreements that Yalta and Potsdam had only papered over.
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