On this day, 20 July 1943, two Jewish members of the Waldkommando work unit at the Sobibor concentration camp attacked their Ukrainian guard and encouraged other members of the unit to escape. The Waldkommando was composed of 20 Polish Jews and 20 Dutch Jews, and it supplied wood for the crematorium by cutting down trees and digging out the stumps. Shlomo Podchlebnik and Josef Kopf initiated the breakout with a knife Podchlebnik had in his boot. A separate group of Polish Jews decided to flee on foot while eight guards were eating lunch on this same day. Several of them - Podchlebnik, Kopf, Zindel Honigman, Josef Freitag, Chaim Korenfeld, Abraham Wang, and Aron Licht - were able successfully escape. Josef Kopf and Aron Licht were murdered by Polish anti-Semites in separate incidents after their escape. The others survived the duration of the war. https://www.facebook.com/workingclasshistory/photos/a.296224173896073/1171030456415436/?type=3