when did germany and soviet union sign non aggression pact
Molotov–Ribbentrop Pact The Molotov–Ribbentrop Pact, also known as the Nazi–Soviet Pact,[1] the German–Soviet Non-aggression Pact[2][3] or the Nazi German-Soviet Pact of Aggression[4][5][6] (officially: Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics),[a] was a neutrality pact between Nazi Germany and the Soviet Union signed in Moscow on 23 August 1939 by foreign ministers Joachim von Ribbentrop and Vyacheslav Molotov, respectively.[8] The pact was followed by the German-Soviet Commercial Agreement in February 1940.