In March 1942, approximately 75 to 80 percent of all victims of the Holocaust were still alive. Eleven months later, 75 to 80 percent were dead — the result, according to Christopher R. Browning, of “a short, intense wave of mass murder” centered in Poland. One German unit of just over 450 men, Reserve Police Battalion 101, was responsible for the shooting of 39,000 Polish Jews and the deportation of 44,000 more to the Treblinka death camp over a period of 16 months. In this