 Considering claims for freedom and democracy within the Soviet bloc a danger to its domestic policies, the SED, from the beginning, attacked Prague's new political course, which resulted in intervention by the Soviet military and other Warsaw Pact contingents in 1968.In August 1970, the Soviet Union and West Germany signed the Moscow Treaty, in which the two countries pledged nonaggression in their relations and in matters concerning European and international security and confirmed the Oder-Neisse line.Moscow subsequently pressured East Germany to begin bilateral talks with West Germany.