Czesław Kiszczak quasi-government administering Poland during the martial law (1981–83). In 1982 he became a deputy member of the Politburo of the Polish United Workers' Party and a full member in 1986. From December 1981 until June 1989 Kiszczak was the second most important person in Poland, after General Wojciech Jaruzelski, the nation's top leader. Together they orchestrated the crackdown aimed at crushing the "Solidarity", the Eastern Bloc’s first non-communist labor union movement. Martial law included the mass roundup and internment of "Solidarity" activists, curfews and other harsh measures. Generals Kiszczak and Jaruzelski later insisted that they were imposing martial law to
Wojciech Jaruzelski Soviet leadership. Jaruzelski was elected his successor, becoming the only professional soldier to become leader of a ruling European Communist party. A fortnight after taking power, Jaruzelski met with Solidarity head Lech Wałęsa and Catholic bishop Józef Glemp, and hinted that he wanted to bring the church and the union into a sort of coalition government. However, his intention was to crush Solidarity. As early as September, while he was still merely prime minister, he met with his aides to find an excuse to impose martial law. On 13 December, citing purported recordings of Solidarity leaders planning a coup, Jaruzelski