Olga Lengyel, a prisoner at the Birkenau camp, wrote in her book entitled "Five Chimneys" that she had heard about Dr. Mengele from the other inmates before she saw him. Lengyel wrote that she had heard that Dr. Mengele was "good-looking" but she was surprised by how "really handsome" he was. Lengyel wrote, regarding Dr. Mengele: "Though he was making decisions that meant extermination, he was as pleasantly smug as any man could be."
The photo above was taken while Mengele was home on leave, after spending 5 months at Auschwitz-Birkenau. He is wearing an Iron Cross medal on the pocket of his uniform. Mengele was very proud of his medals; he earned the Iron Cross 2nd Class shortly after he was sent to the Ukraine in June 1941 at the time of the German invasion of the Soviet Union. In January 1942, Mengele joined the prestigious 5th SS Panzer Division, nicknamed the Viking Division. In July 1942, he was awarded the Iron Cross 1st Class after he pulled two wounded soldiers out of a burning tank under enemy fire on the battlefield, and administered medical first aid to them.

^ Eikel, Markus (2013). "The local administration under German occupation in central and eastern Ukraine, 1941–1944". The Holocaust in Ukraine: New Sources and Perspectives (PDF). Center for Advanced Holocaust Studies, United States Holocaust Memorial Museum. Pages 110–122 in PDF. Ukraine differs from other parts of the Nazi-occupied Soviet Union, whereas the local administrators have formed the Hilfsverwaltung in support of extermination policies in 1941 and 1942, and in providing assistance for the deportations to camps in Germany mainly in 1942 and 1943.
Almost all Jews within areas occupied by the Germans were killed. There were 3,020,000 Jews in the Soviet Union in 1939, and the losses were 1–1.1 million.[400] Around one million Jews were killed by the Einsatzgruppen in the occupied Soviet territories.[401][402] Of Poland's 3.3 million Jews, about 90 percent were killed.[369] Many more died in the ghettos of Poland before they could be deported.[403] The death camps accounted for half the number of Jews killed; 80–90 percent of death-camp victims are estimated to have been Jews.[394] At Auschwitz-Birkenau the Jewish death toll was 1.1 million;[286][404] Treblinka 870,000–925,000;[405] Bełżec 434,000–600,000;[406][287] Chełmno 152,000–320,000;[407][288] Sobibór 170,000–250,000;[408][291] and Majdanek 79,000.[289]
A German mother shields the eyes of her son as they walk with other civilians past a row of exhumed bodies outside Suttrop, Germany. The bodies were those of 57 Russians killed by German SS troops and dumped in a mass grave before the arrival of troops from the U.S. Ninth Army. Soldiers of the 95th Infantry division were led by informers to the massive grave on May 3, 1945. Before burial, all German civilians in the vicinity were ordered to view the victims. #
In 1935, Mengele earned a PhD in anthropology from the University of Munich.[7] In January 1937, he joined the Institute for Hereditary Biology and Racial Hygiene in Frankfurt, where he worked for Dr. Otmar Freiherr von Verschuer, a German geneticist with a particular interest in researching twins.[7] As von Verschuer's assistant, Mengele focused on the genetic factors that result in a cleft lip and palate, or a cleft chin.[10] His thesis on the subject earned him a cum laude doctorate in medicine (MD) from the University of Frankfurt in 1938.[11] (Both of his degrees were revoked by the issuing universities in the 1960s.)[12] In a letter of recommendation, von Verschuer praised Mengele's reliability and his ability to verbally present complex material in a clear manner.[13] The American author Robert Jay Lifton notes that Mengele's published works were in keeping with the scientific mainstream of the time, and would probably have been viewed as valid scientific efforts even outside Nazi Germany.[13]