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
Wojciech Jaruzelski why he never apologized for his involvement, but he had an option of resigning open to him, especially after the resignation of foreign minister Adam Rapacki, and Jaruzelski did not. Jaruzelski became a candidate member for the Politburo of the Polish United Workers' Party, the chief executive body of the party, obtaining full membership the following year. On 11 February 1981, Jaruzelski was named Chairman of the Council of Ministers (Prime Minister). On 18 October, Stanisław Kania was ousted as First Secretary of the Central Committee of the Polish United Workers' Party after a listening device recorded him criticising the