World Mikhail Gorbachev, former Soviet leader who paved way for end of Cold War, dead at 91 August 30, 2022 William Welch and Jorge Ortiz Comments Off on Mikhail Gorbachev, former Soviet leader who paved way for end of Cold War, dead at 91 Mikhail Gorbachev won the Nobel Prize for helping end the nuclear arms race while presiding over the dissolution of the Soviet Union.