"Gorbachev's most impressive moment was still to come. On December 7, 1988, in his address to the UN general assembly, he declared the end of the Cold War, renouncing not only the 1945 Yalta settlement but also the ideological struggle between the Soviet Union and the West since November 1917. According to the Soviet leader, the Bolshevik revolution had entered the realm of history, and class conflict would no longer dominate global politics. "We are entering an era in which progress will be based on the common interests of the whole of mankind... The common values of humanity must be the determining priority in international politics, [requiring] the freeing of international relations from ideology." Gorbachev also repudiated the Brezhnev doctrine: "Force or the threat of force neither can nor should be the instruments of foreign policy... To deny a nation freedom of choice, regardless of the pretext or the verbal guise in which it is cloaked, is to upset the unstable balance that has been achieved... Freedom of choice is a universal principal, which knows no exception." Gorbachev's third point was to pronounce a new reality in the arms race: given the unlikelihood of a Superpower conflict, the principle of stockpiling arms was to be replaced with one of "reasonable sufficiency." To make this clear, he announced a unilateral cut of five hundred thousand men from the Soviet army and a withdrawal of fifty thousand soldiers and five thousand tanks from the Soviet forces in Eastern Europe, and he proposed negotiations on even greater reductions. One day later, during his private New York meeting with the outgoing Reagan and the new US president George H.W. Bush, Gorbachev pressed for rapid progress in arms control leading to the complete abolition of nuclear weapons."