Polish Armed Forces government to resettle ethnicities immediately after the war (Operation Vistula), and to violently suppress opposition several times, during the Poznań 1956 protests, the Polish 1970 protests, and during Martial law in Poland in 1981–1982. The LWP also took part in the suppressing of the 1968 democratization process of Czechoslovakia, commonly known as the Prague Spring. That same year Marshal of Poland Marian Spychalski was asked to replace Edward Ochab as chairman of the Council of State, and General Wojciech Jaruzelski, at that time the Chief of the General Staff, was named to replace him. Michta argues that Jaruzelski, as a
Solidarity (Polish trade union) regional structure, comprising 38 regions ("region") and two districts ("okręg"). At its highest, the Union had over 10 million members, which became the largest union membership in the world. During the communist era the 38 regional delegates were arrested and jailed when martial law came into effect on 13 December 1981 under General Wojciech Jaruzelski. After a one-year prison term the high-ranking members of the union were offered one way trips to any country accepting them (including Canada, the United States, and nations in the Middle East). Solidarity was organized as an industrial union, or more specifically according to the