Cold War (1985–1991) reduced some strategic arms unilaterally. Fundamental to the dissolution of the Soviet Union, the Gorbachev policy initiatives of Restructuring ("Perestroika") and Openness ("Glasnost") had ripple effects throughout the Soviet world, including eventually making it impossible to reassert central control over Warsaw Pact member states without resorting to military force. On June 12, 1987, Reagan challenged Gorbachev to go further with his reforms and democratization by tearing down the Berlin Wall. In a speech at the Brandenburg Gate next to the wall, Reagan stated: While the aging communist European leaders kept their states in the grip of "normalization", Gorbachev's reformist policies
Mikhail Gorbachev Kiev, Ukraine. In 2006, he expressed his continued belief in Lenin's ideas: "I trusted him then and I still do". He claimed that "the essence of Lenin" was a desire to develop "the living creative activity of the masses". Taubman believed that Gorbachev identified with Lenin on a psychological level. Taubman described Gorbachev as "a true believer—not in the Soviet system as it functioned (or didn't) in 1985 but in its potential to live up to what he deemed its original ideals." As Soviet leader, Gorbachev believed in incremental reform rather than a radical transformation; he later referred to this