The USA failure in Vietnam and economic problems in the USSR caused a temporary relaxation in relations between the warring blocks. In 1972, SALT I agreements were signed on the limitation of strategic arms. Nixon and Brezhnev proclaimed “peaceful coexistence”. In the final act of the 1975 Conference on Security and Cooperation in Europe, for the first time capitalist and communist countries adopted common principles of conduct in international relations.
Operation Danube, intervention of the Warsaw Pact armies in the Czech Republic, 1968.
Signing the SALT I agreement in 1972.