Polish prime minister Wojciech Jaruzelski (pictured) declared martial law.

Wojciech Witold Jaruzelski was a Polish military general, politician and de facto leader of the Polish People's Republic from 1981 until 1989, and a military dictator from 13 December 1981 until 22 July 1983. He was the First Secretary of the Polish United Workers' Party between 1981 and 1989, making him the last leader of the Polish People's Republic. Jaruzelski served as Prime Minister from 1981 to 1985, the Chairman of the Council of State from 1985 to 1989 and briefly as President of Poland from 1989 to 1990, when the office of President was restored after 37 years. He was also the last commander-in-chief of the Polish People's Army, which in 1990 became the Polish Armed Forces.

Martial law in Poland existed between 13 December 1981 and 22 July 1983. The government of the Polish People's Republic drastically restricted everyday life by introducing martial law and a military junta in an attempt to counter political opposition, in particular the Solidarity movement.