As a consequence of the defeat of Nazi Germany in World War II, Germany was cut between the two global blocs in the East and West, a period known as the division of Germany. Germany was stripped of its war gains and lost territories in the east to Poland and the Soviet Union. Seven million prisoners and forced laborers left Germany, most of whom died either during their emigration of starvation, due to harsh conditions, or because they were worked to death. Over 10 million German-speaking refugees arrived in Germany from other countries in Central and Eastern Europe. Many German POWs became forced laborers to provide restitution to the countries Germany had devastated in the war and some industrial equipment was removed as reparations.
The Cold War divided Germany between the Allies in the west and Soviets in the east. Germans had little voice in government until 1949 when two states emerged:
After experiencing its Wirtschaftswunder or "economic miracle" in 1955, West Germany became the most prosperous economy in Europe. Under Chancellor Konrad Adenauer, West Germany built strong relationships with France, the United States, and Israel. West Germany also joined the North Atlantic Treaty Organization and the European Economic Community (later to become the European Union). East Germany stagnated as its economy was largely organized to meet the needs of the Soviet Union; the secret police (Stasi) tightly controlled daily life, and the Berlin Wall (1961) ended the steady flow of refugees to the west. Germany was reunited in 1990, following the decline and fall of the SED as the ruling party of the GDR.
At the Potsdam Conference (17 July to 2 August 1945), after Germany's unconditional surrender on 8 May 1945, the Allies divided "Occupation Zone Germany" into four military occupation zones — France in the southwest, Britain in the northwest, the United States in the south, and the Soviet Union in the east.