Historical Organization
Warsaw Pact
Warsaw Pact
Details
Organization Timeline
Warsaw Pact invasion ends the Prague Spring
📅 20 August 1968Soviet-led forces invaded Czechoslovakia and reversed its reform movement. The intervention tested NAM’s commitment to sovereignty and non-interference when coercion came from a socialist great...
Warsaw Pact forces invade Czechoslovakia
📅 20 August 1968Soviet and allied forces entered Czechoslovakia to end the Prague Spring reforms. Romania did not take part. The intervention affirmed Moscow’s claim to limit the sovereignty of socialist states and...
Soviet article articulates limits on socialist-state sovereignty
📅 26 September 1968A Pravda article by Sergei Kovalev argued that the sovereignty of a socialist country could not override the interests of the wider socialist community. It supplied a public rationale for intervention...
NATO begins Able Archer 83 as Soviet leaders fear a surprise attack
📅 2 November 1983The annual command-post exercise practiced nuclear release procedures during a period of acute mistrust. Declassified records show Soviet intelligence closely watched it; historians debate the scale...
Warsaw Pact suspends East-West troop-reduction negotiations
📅 15 December 1983Warsaw Pact states declined to set a resumption date for negotiations on mutual troop reductions in Europe. The suspension narrowed a major arms-control forum during a period of heightened nuclear...
Gorbachev announces unilateral Soviet force reductions
📅 7 December 1988At the UN, Gorbachev announced large troop and tank reductions and a shift away from military intervention in Eastern Europe. The plan altered the external balance while leaving the political...