 However, the Sejm had been in session at the time when martial law was instituted.In 1992 the Sejm declared the 1981 imposition of martial law to be unlawful and unconstitutional.The instigators of the martial law, such as Wojciech Jaruzelski, argue that the army crackdown rescued Poland from a possibly disastrous military intervention of the Soviet Union, East Germany, and other Warsaw Pact countries (similar to the earlier interventions in Hungary in 1956 and Czechoslovakia in 1968).