The Bolshevik Revolution of 1917 was a major event in Russian history, and it was led by Vladimir Lenin and his supporters, known as Bolsheviks. One of the most prominent figures in the revolution was Vyacheslav Molotov, who served as the Soviet Union's foreign minister from 1939 to 1949. He is best known for his role in the Molotov-Ribbentrop Pact, which was a non-aggression pact between Nazi Germany and the Soviet Union. Molotov was also instrumental in the development of the Soviet Union's foreign policy during the Cold War.