<prompt> Pedzisa mutsara unotevera: Dubček ndeye 2018 Slovak nhoroondo firimu yakavakirwa pahupenyu hwaAlexander Dubček, wezvematongerwo enyika weSlovak akashanda saMunyori Wekutanga wePresidium yeCentral Committee yeCommunist Party yeCzechoslovakia KSČ uye akaedza kugadzirisa hurumende yemakomunisti panguva yePrague Spring asi akamanikidzwa kusiya basa zvichitevera  <response>: Kupinda kweWarsaw Pact muna August 1968. 