Pedzisa mutsara unotevera: Vavandudzi vokuCzechoslovakia vakanga vasingadi kubvumira masimba omusika kuti ashande akasununguka. Vakanga vashandisa rutivi bedzi rwepurogiramu yavo pakasvika August 1968, apo mauto eSoviet namamwe mauto eSungano yeWarsaw
vakapinda munyika uye kuedza kworusununguko kwakaguma. Makore maviri akatevera akaona kuparadzwa zvishoma nezvishoma kwechikamu chikuru chepurogiramu yacho. Pakutanga kwema1970, inenge miitiro yose yezvirongwa zveshanduko yakanga yanyangarika.