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
Martial law in the United States and customs" which had led to "outbreaks of lawlessness and mob action." The agitators were Freedom Riders, peaceful civil rights activists challenging the already-illegal racial segregation in the South. Martial law in the United States Martial law in the United States refers to several periods in United States history wherein a region or the United States as whole are placed under the control of a military body. On a federal level, only the president has the power to impose Martial Law. In each state the governor has the right to impose martial law within the borders of the state. In