7.1.21 to 7.1.25

However, on 12 December 1979, in light of a build-up of Warsaw Pact nuclear capabilities in Europe, ministers approved the deployment of US Cruise and Pershing II theatre nuclear weapons in Europe. The new warheads were also meant to strengthen the western negotiating position in regard to nuclear disarmament. This policy was called the Dual Track policy. Similarly, in 1983�84, responding to the stationing of Warsaw Pact SS-20 medium-range missiles in Europe, NATO deployed modern Pershing II missiles able to reach Moscow within minutes. This action led to bitter peace movement protests throughout Western Europe. The membership of the organization in this time period likewise remained largely static, with NATO only gaining one new member in 30 May 1982, when newly democratic Spain joined the alliance, following a referendum. Greece also in 1974 withdrew its forces from NATO's military command structure, as a result of Greco-Turkish tensions following the 1974 Cyprus dispute; Greek forces were however readmitted in 1980. In November 1983, a NATO manoeuvre code-named Able Archer 83, which simulated a NATO nuclear release, caused panic in the Kremlin. Soviet leadership, led by ailing General Secretary Yuri Andropov became concerned that US President Ronald Reagan may have been intending to launch a genuine first strike. In response, Soviet nuclear forces were readied and air units in Eastern Germany and Poland were placed on alert. Though at the time written off by US intelligence as a propaganda effort, many historians now believe Soviet fear of a NATO first strike was genuine. Post-Cold War The end of the Cold War, the dissolution of the Warsaw Pact in 1991, removed the de facto main adversary of NATO. This caused a strategic reevalution of NATO's purpose, nature and tasks. In practice this ended up entailing a gradual (and still ongoing) expansion of NATO to Eastern Europe, as well as the extension of its activities to areas not formerly concerning it.