Organized armed resistance was the most forceful form of Jewish opposition to Nazi policies.
German forces intended to liquidate the Warsaw ghetto beginning on April 19, 1943, the eve of the Jewish holiday of Passover. When SS and police units entered the ghetto that morning, the streets were deserted. Nearly all of the residents of the ghetto had gone into hiding, as the renewal of deportations of Jews to death camps triggered an armed uprising within the ghetto. Though vastly outnumbered and outgunned, individuals and small groups of Jews hid or fought the Germans for almost a month.