Waxad ku sii dartaa faqradan - Habeenkii 20/21 August 1968, ciidamada Eastern Bloc ee shanta dal ee Warsaw Pact (Soviet Union, Poland, East Germany, Hungary and Bulgaria) waxay soo galeen Czechoslovakia
Waxaad Duulaanku wuxuu la socday Brezhnev Doctrine, siyaasad lagu qasbayo dowladaha Bariga inay hoos geliyaan danaha qaranka kuwa Bloc-ka guud ahaan iyo adeegsiga xuquuqda Soviet-ka ee faragelinta haddii dal ka mid ah Eastern Bloc uu u muuqday inuu u wareegayo qabyaalad. Duulaankii waxaa raacay mowjad tahriib ah, oo ay ku jiraan qiyaastii 70,000 oo reer Czechoslovaks ah oo markii hore cararay, iyadoo wadarta guud ay ugu dambeyntii gaareen 300,000.