<prompt> 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  <response>: 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. 