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
Foreign relations of the Soviet Union of the Communist Party. The foremost objectives of Soviet foreign policy had been the maintenance and enhancement of national security and the maintenance of hegemony over Eastern Europe. Relations with the United States and Western Europe were also of major concern to Soviet foreign policy makers and, much as with the United States, relations with individual Third World states were at least partly determined by the proximity of each state to the border and to estimates of strategic significance. When Mikhail Gorbachev succeeded Konstantin Chernenko as General Secretary of the Communist Party in 1985, it signaled a dramatic change in