RAF Greenham Common November 1983; they were flown onto the base by Lockheed C-5 Galaxys. A series of meetings held during August and September 1986 culminated in a summit between United States President Ronald Reagan and the General Secretary of the CPSU Mikhail Gorbachev in Reykjavík, Iceland, on 11 October 1986. To the surprise of both men's advisers, the two agreed in principle to removing INF systems from Europe and to equal global limits of 100 INF missile warheads. The United States and the Soviet Union signed the Intermediate-Range Nuclear Forces Treaty in 1987, which led to the removal of all nuclear missiles
Treaty on Conventional Armed Forces in Europe the establishment of an effective verification system. Meanwhile, in December the INF Treaty between the United States and the Soviet Union was signed, effectively allowing mutual inspections. During the May–June 1988 Moscow Summit, US President Ronald Reagan and General Secretary Gorbachev emphasized the importance of stability and security in Europe, specifically calling for data exchange, verification of these data, and then reductions. In December Gorbachev announced at the United Nations a unilateral withdrawal of 50,000 troops from Eastern Europe, and demobilization of 500,000 Soviet troops. In January 1989, NATO and the Warsaw Treaty members produced the Mandate for the Negotiation