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The Molotov-Ribbentrop Pact was a non-aggression treaty signed by Nazi Germany and the Soviet Union on 23 August 1939. The pact is named after Soviet Foreign Minister Vyacheslav Molotov and Nazi Germany's Foreign Minister Joachim von Ribbentrop. The pact effectively divided Europe into two spheres of influence, with Germany to control western Europe and the Soviet Union to control eastern Europe.