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Events on Wednesday 21 August 1968 1
1968Warsaw Pact invasion of CzechoslovakiaSoviet-led forces crush the Prague SpringRoughly 200,000 troops and 2,000 tanks from the Soviet Union and four other Warsaw Pact states invaded Czechoslovakia to halt Alexander Dubcek's reforms. Czechoslovak citizens engaged in widespread but nonviolent resistance. Dubcek was removed from power the following year and hardline rule was restored.