Cika wannan jumla:
Warsaw Pact mamaye Czechoslovakia a 1968 ya biyo bayan ƙaura, wanda ba a taɓa gani ba kuma ya tsaya ba da daɗewa ba a cikin 1969 (ƙididdiga: 70,000 nan da nan, 300,000 gaba ɗaya), yawanci na ƙwararrun mutane.