<prompt> Pedzisa mutsara unotevera: Prague raiva guta raiva munharaunda yaidzorwa nemauto uye zvematongerwe enyika neSoviet Union ona Iron Curtain. Chiyeuchidzo chikuru chaStalin chakaziviswa pachikomo cheLetná muna 1955 uye chakaparadzwa muna 1962. Musangano wechi4 weVanyori veCzechoslovak wakaitirwa muguta muna June 1967 wakatora chimiro chakasimba mukurwisana nehurumende. Pana 31 October 1967 vadzidzi vakaratidzira paStrahov. Ikoku kwakakurudzira munyori mutsva weCzechoslovak Communist Party, Alexander Dubček, kuzivisa chibvumirano chitsva muupenyu hweguta rake nenyika, kuvamba nhambo yenguva pfupi yesocialism ine chiso chomunhu. Yakanga iri Tsime rePrague, iro raiva nechinangwa chokugadziridza masangano nenzira yorusununguko. Dzimwe nyika dziri nhengo dzeWarsaw Pact, kunze kweRomania neAlbania, dzakapindura nechiziviso chekurambidzwa kwebasa.  <response>: kupinda kweCzechoslovakia uye guta guru musi wa21 August 1968 nematanki, kudzvinyirira kuedza kupi nokupi kworusununguko. 