
Operation Reinhard was launched with the March 1942 opening of the Belzec death camp near Poland’s border with modern-day Ukraine. Starting in late July 1942, Treblinka’s gas chambers would begin to empty the Warsaw Ghetto of Jews. The expanded death camp of Sobibor reopened soon after, fulfilling Gestapo chief Heinrich Himmler’s July 19, 1942, order that, with few exceptions, all Jews within German-occupied Poland should be exterminated by the end of the year.
Source: latimes.com – Los Angeles Times