Mikhail Gorbachev was a Soviet politician. Gorbachev served as the last general secretary of the Communist Party of the Soviet Union (1985–91) as well as the last president of the Soviet Union (1990–91). Both as general secretary and as president, Gorbachev supported democratic reforms. He enacted policies of glasnost (“openness”) and perestroika (“restructuring”), and he pushed for disarmament and demilitarization in eastern Europe. Gorbachev’s policies ultimately led to the collapse of the Soviet Union in 1990–91.