Presidency of Ronald Reagan to forestall the possibility of an agreement between the United States and the Soviet Union. Nonetheless, both Gorbachev and Reagan agreed to continue arms control negotiations at the October 1986 Reykjavík Summit. At the summit, Gorbachev and Reagan closed in on an agreement to greatly reduce or eliminate the nuclear stockpiles of both the U.S. and the Soviet Union over a ten-year period, but the deal collapsed due to disagreements regarding SDI development. Reagan attacked Gorbachev in a 1987 speech delivered in West Berlin, but negotiations continued. Gorbachev and Reagan broke the impasse by agreeing to negotiate separate treaties on
Foreign policy of the Ronald Reagan administration that they would no longer intervene in the affairs of allied states in Eastern Europe. In 1989, Soviet forces withdrew from Afghanistan. Reagan's Secretary of State George P. Shultz, a former economics professor at Stanford University, privately instructed Gorbachev on free market economics. At Gorbachev's request, Reagan gave a speech on free markets at Moscow University. When Reagan visited Moscow, he was viewed as a celebrity by the Soviets. A journalist asked the president if he still considered the Soviet Union the evil empire. "No," he replied, "I was talking about another time, another era." In his autobiography "An American