In October 1941, Himmler authorized SS General Odilo Globocnik (SS and police leader for the Lublin District of the Generalgouvernement) to implement a plan to systematically murder all Jews residing in the Generalgouvernement. In 1942, this project received the code name "Operation Reinhard" (Einsatz Reinhard), a reference to Heydrich (who had been authorized to manage the implementation of the "Final Solution" and who was assassinated by Czech agents in May 1942 in Prague).
Throughout German-occupied territory the situation of the Jews was desperate. They had meagre resources and few allies and faced impossible choices. A few people came to their rescue, often at the risk of their own lives. Swedish diplomat Raoul Wallenberg arrived in Budapest on July 9, 1944, in an effort to save Hungary’s sole remaining Jewish community. Over the next six months, he worked with other neutral diplomats, the Vatican, and Jews themselves to prevent the deportation of these last Jews. Elsewhere, Le Chambon-sur-Lignon, a French Huguenot village, became a haven for 5,000 Jews. In German-occupied Poland, where it was illegal to aid Jews and where such action was punishable by death, the Zegota (Council for Aid to Jews) rescued a similar number of Jewish men, women, and children. Financed by the London-based Polish government in exile and involving a wide range of clandestine political organizations, Zegota provided hiding places and financial support and forged identity documents.
In order to make way for these new prisoners, the SS took many thousands of Jews from the ghettos of Kovno, Riga, Minsk, Łódź, Lvov and Lublin to be murdered by the Einsatzgruppen. Even though the SS claimed to be the hardened ‘Master Race’, quite a few of them found it ‘difficult’ to murder women and children. In addition, the shooting process used by the Einsatzgruppen was expensive.
Himmler assembled a force of about 3,000 men from Security Police, Gestapo, Kripo, SD, and the Waffen-SS, as the so-called "special commandos of the security forces" known as the Einsatzgruppen, to eliminate both communists and Jews in occupied territories. These forces were supported by 21 battalions of Orpo Reserve Police under Kurt Daluege, adding up to 11,000 men. The explicit orders given to the Order Police varied between locations, but for Police Battalion 309 participating in the first mass murder of 5,500 Polish Jews in the Soviet-controlled Białystok (a Polish provincial capital), Major Weiss explained to his officers that Barbarossa is a war of annihilation against Bolshevism, and that his battalions would proceed ruthlessly against all Jews, regardless of age or sex.
In Auschwitz, the murdering of prisoners in gas chambers began even earlier, when 575 sick and disabled prisoners were sent to their deaths at the euthanasia center in Germany at the end of June 1941. At the beginning of September, the SS used Zyklon B gas in the cellars of block 11 to kill about 600 Soviet POWs and another group of patients from the camp hospital. Soviet POWs and Jews brought from Upper Silesia were killed in the gas chamber in crematorium I over the following months. It was probably at the end of March or in April 1942 that the Germans began killing sick prisoners and Jews in a provisional gas chamber in Birkenau (the so-called “little red house”). The tempo of atrocities increased in June and July 1942, with transports of Jews sent to Auschwitz being subjected to systematic “selections” during which SS doctors sentenced people classified as unfit for labor to death.
Not long after beginning the survey of the site, Freund and his team confirmed the existence of a previously unmarked burial pit. At 80 feet across and 15 feet deep, the scientists calculated that the grave contained the cremated remains of as many as 7,000 people. The researchers also released the preliminary results of their search for the tunnel, along with a series of ERT-generated cross sections that revealed the tunnel’s depth beneath the ground’s surface (15 feet at points) and its dimensions: three feet by three feet at the very widest, not much larger than a human torso. From the entrance inside the bunker to the spot in the forest, now long grown over, where the prisoners emerged measured more than 110 feet. At last, there was definitive proof of a story known until now only in obscure testimonies made by a handful of survivors—a kind of scientific witness that transformed “history into reality,” in the words of Miri Regev, Israel’s minister of culture, who highlighted the importance of documenting physical evidence of Nazi atrocities as a bulwark against “the lies of the Holocaust deniers.”
In another case in which a mother did not want to be separated from her thirteen-year-old daughter, and bit and scratched the face of the SS man who tried to force her to her assigned line, Mengele drew his gun and shot both the woman and the child. As a blanket punishment, he then sent to the gas all people from that transport who had previously been selected for work, with the comment: "Away with this shit!" (Robert Jay Lifton, The Nazi Doctors.)
And so, at the behest of their Führer, a handful of Nazi bureaucrats conspired to bring about the demise of millions. On January 20, 1942, they attended the Wannsee Conference in Berlin, organized by SS-Obergruppenführer Reinhard Heydrich, who told them, “In the course of the practical execution of the Final Solution, Europe will be combed through from west to east.”
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.