<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngobusuku buka-August 2021 1968, amabutho aseMpumalanga eBlock avela emazweni amane aseWarsaw Pact iSoviet Union, iBulgaria, iPoland neHungary ahlasela iCzechoslovakia  <response>: . futhi. Lokhu kuhlasela kwakuhambisana neBrejnev Doctrine, inqubomgomo yokuphoqa amazwe aseMpumalanga ukuba abeke izithakazelo zawo ngaphansi kwezithakazelo zezwe lawo kanye nokusebenzisa ilungelo leSoviet lokungenelela uma izwe laseMpumalanga libonakala lishintshela ekuthuthukiseni umnotho. Lokhu kuhlasela kwalandelwa ukufuduka kwabantu abaningi, kuhlanganise namaCzech alinganiselwa ku-70 000 abaleka ekuqaleni, okwagcina kufinyelele ku-300 000. Ngo-April 1969, uDubček wathathelwa isikhundla sokuba unobhala wokuqala nguGustáv Husák, futhi kwaqala inkathi yokujwayelekile. UHusák wahlehlisa izinguquko zikaDubček, wahlanza iqembu lamalungu akhululekile, waxosha abaphikisi ezikhundleni zomphakathi, wabuyisela amandla eminyangweni yamaphoyisa, wazama ukuvuselela umnotho futhi wavuselela ukungavunyelwa kokuphawula kwezepolitiki kwabezindaba ezijwayelekile kanye nabantu ababhekwa njengabanakho ukuthembela okuphelele kwezepolitiki. Isithombe samazwe omhlaba seSoviet Union sahlupheka kakhulu, ikakhulukazi phakathi kwezinhlangano zabafundi baseNtshonalanga eziphefumulelwe yiNew Left kanye namazwe angahlangene. Ngokwesibonelo, iRiphabhuliki Yabantu YaseChina kaMao Zedong, yamlahla kokubili amaSoviet namaMelika njengamazwe angamavukela-mbuso. 