But the exhortations of both Isaiah and the Jerusalem Talmud would also seem to apply, collectively and individually, to the thousands of Poles who saved Jews, often exposing themselves to considerably greater danger than those who acted similarly in Nazi-occupied Western Europe. Nor is the message of these passages limited to acts of heroic selflessness during the Shoah. Think, for instance, of Zidan Saif, the Druze policeman who gave his life defending a Jerusalem synagogue against terrorists in 2014—or, in the realm of power politics, of those many Gentiles, from Arthur Balfour to Harry Truman to Daniel P. Moynihan, who at decisive moments in history have spoken up for the Jewish people and the Jewish state.
The Majdanek camp served from time to time as a killing site for Jews residing in the Generalgouvernement. In its gas chambers, the SS killed tens of thousands of Jews, primarily forced laborers too weak to work. The SS and police killed at least 152,000 people, mostly Jews, but also a few thousand Roma (Gypsies), in gas vans at the Chelmno killing center about thirty miles northwest of Lodz. In the spring of 1942, Himmler designated Auschwitz II (Auschwitz-Birkenau) as a killing facility. SS authorities murdered approximately one million Jews from various European countries at Auschwitz-Birkenau.
Before the war, Mengele had received doctorates in anthropology and medicine, and began a career as a researcher. He joined the Nazi Party in 1937 and the SS in 1938. He was assigned as a battalion medical officer at the start of World War II, then transferred to the Nazi concentration camps service in early 1943 and assigned to Auschwitz, where he saw the opportunity to conduct genetic research on human subjects. His subsequent experiments focused primarily on twins, with little regard for the health or safety of the victims.