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
Presidency of Ronald Reagan troops since the end of the Vietnam War. The administration also created controversy by granting aid to paramilitary forces seeking to overthrow leftist governments, particularly in war-torn Central America and Afghanistan. Specifically, the Reagan administration engaged in covert arms sales to Iran to fund Contra rebels in Nicaragua that were fighting to overthrow their nation's socialist government; the resulting scandal led to the conviction or resignation of several administration officials. During Reagan's second term, he sought closer relations with Soviet leader Mikhail Gorbachev, and the two leaders signed a major arms control agreement known as the INF Treaty. Leaving office