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[[Image:P80 6.jpg|thumb|225px|Stalin and Von Ribbentrop at the signing of the non-aggression pact]]

[[Image:P80 6.jpg|thumb|225px|Stalin and Von Ribbentrop at the signing of the non-aggression pact]]

[[File:German-Soviet invasion of Poland.jpg|thumb|225px|A Nazi German and Soviet Communist officer shake hands after their successful invasion of Poland in September 1939.]]

[[File:German-Soviet invasion of Poland.jpg|thumb|310px|A Nazi German and Soviet Communist officer shake hands after their successful invasion of Poland in September 1939.]]

The '''Molotov-Ribbentrop pact''' (formally the ''Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics'', also called the '''Hitler-Stalin pact''', '''Nazi-Soviet pact''' and '''Communazi pact''') was a treaty between [[Third Reich|Nazi Germany]] and the [[Soviet Union]], in the opening days of [[World War II]]. Some portions of the Molotov-Ribbentrop pact remained in force until the collapse of the Soviet Union in 1991.

The '''Molotov-Ribbentrop pact''' (formally the ''Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics'', also called the '''Hitler-Stalin pact''', '''Nazi-Soviet pact''' and '''Communazi pact''') was a treaty between [[Third Reich|Nazi Germany]] and the [[Soviet Union]], in the opening days of [[World War II]]. Some portions of the Molotov-Ribbentrop pact remained in force until the collapse of the Soviet Union in 1991.