Explain the effect of the Warsaw Pact as a treaty in existence during the cold war?

During the Cold War in 1956, Soviet troops entered the country and removed the government. The multi-national Communist armed forces main joint action was the Warsaw Pact invasion of Czechoslovakia in August 1968. Hope it helps

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

the answer is "by providing data about careers and annual mean wages"