Kammala jumla mai zuwa: Prague birni ne a cikin yankin soja da siyasa na Soviet Union (duba Iron Curtain). An buɗe babban abin tunawa na Stalin a kan dutsen Letná a 1955 kuma an lalata shi a 1962. Majalisa ta 4 na Marubuta na Czechoslovak da aka gudanar a cikin birni a watan Yunin 1967 ta ɗauki matsayi mai ƙarfi game da mulkin. A ranar 31 ga Oktoba 1967 ɗalibai sun yi zanga-zanga a Strahov. Wannan ya motsa sabon sakataren Jam'iyyar Kwaminis ta Czechoslovak, Alexander Dubček, ya yi shelar sabon yarjejeniya a rayuwar garinsa da ƙasarsa, yana fara lokacin ɗan gajeren lokaci na "zamantakewa tare da fuskar mutum". Shi ne Spring na Prague, wanda ke nufin sabunta cibiyoyin a cikin hanyar dimokiradiyya. Sauran kasashe mambobin kungiyar Warsaw Pact, sai dai Romania da Albania, sun mayar da martani da cewa sun yi watsi da yarjejeniyar.
mamaye Czechoslovakia da babban birnin kasar a ranar 21 ga Agusta 1968 ta tankuna, hana duk wani yunkurin gyarawa.