On March 11, 1985, Mikhail Gorbachev became leader of the Soviet Union, and within a few weeks the full-scale reformation he attempted to carry out both inside his country and in its cold war relations with the West, particularly the United States, began to unfold.

Stephen Cohen or Steven Cohen may refer to:
Stephen F. Cohen (Middle East scholar) scholar specializing in Middle Eastern affairs
Stephen Cohen (entrepreneur) (born 1982) entrepreneur; co-founder of Palantir Technologies
Steve Cohen (born 1949) politician from Tennessee
Steve Cohen (magician) (born 1971) parlor magician from New York City
Steve Cohen (wrestler) (born 1963) South African wrestler better known as Steve Simpson
Steven A. Cohen (born 1956) American investor and billionaire
Steven A.