<prompt> Qedela umusho olandelayo: Ngo-1968, iSoviet Union nezitha zayo zeSivumelwano SaseWarsaw  <response>: lahlasela iCzechoslovakia ukuze limise izinguquko zePrague Spring. Ngemuva kwalokho, uBrezhnev walungisa ukuhlasela kanye nokungenelela kwezempi kwangaphambilini kanye nanoma yikuphi ukungenelela kwezempi okungenzeka esikhathini esizayo ngokwethula iBrezhnev Doctrine, eyayimemezela noma yikuphi ukusongelwa kokubusa kobusoshiyali ezweni leWarsaw Pact njengosongo kuwo wonke amazwe aseWarsaw Pact, ngakho-ke kulunga ukungenelela kwezempi. 