Czechoslovak Socialist Republic was jointly invaded by four fellow WarsawPact countries: the Soviet Union, the Polish People's Republic, the People's Republic
and the Nazi–SovietPact, was a non-aggression pact between Nazi Germany and the Soviet Union, with a secret protocol establishing Soviet and German spheres
benefits of the Pact as an instrument for asserting its independence. By the time Soviet Marshal Andrei Grechko assumed command of the WarsawPact in 1960, both