In the photo below, Captain Franz Hoessler is standing in front of a load of corpses of prisoners who died from typhus at Bergen-Belsen. He is speaking into a microphone for a documentary film made by the British after the Bergen-Belsen camp was turned over to them by Heinrich Himmler on April 15, 1945. He is wearing his SS uniform, but the insignia of his military rank has been removed. Hoessler was convicted by the British and hanged on December 13, 1945 for war crimes that he had committed at Auschwitz-Birkenau, including his participation in the selection of prisoners to be gassed.
Jews were forced to move, often to different cities or countries, and live in designated areas, referred to as ghettos. Most of the ghettos were “open” which meant Jews were free to come and go during the daytime. As time past, more and more ghettos became “closed” meaning that Jews were trapped and not allowed to leave. No ghettos were ever established within the borders of Germany and most were only meant as a temporary means of isolating Jews from the German population until they could be moved elsewhere.
The hired hands were earnest and reverent. They began at once to read up on European history, Judaism, and Jewish practice; they consulted a rabbi. They corresponded eagerly with Frank, looking to satisfy his expectations. They travelled to Amsterdam and visited 263 Prinsengracht, the house on the canal where the Franks, the van Daans, and Dussel had been hidden. They met Johannes Kleiman, who, together with Victor Kugler and Miep Gies, had taken over the management of Frank’s business in order to conceal and protect him and his family in the house behind. Reacting to the Hacketts’ lifelong remoteness from Jewish subject matter, Levin took out an ad in the New York Post attacking Bloomgarden and asking that his play be given a hearing. “My work,” he wrote, “has been with the Jewish story. I tried to dramatize the Diary as Anne would have, in her own words. . . . I feel my work has earned the right to be judged by you, the public.” “Ridiculous and laughable,” said Bloomgarden. Appealing to the critic Brooks Atkinson, Levin complained—extravagantly, outrageously—that his play was being “killed by the same arbitrary disregard that brought an end to Anne and six million others.” Frank stopped answering Levin’s letters; many he returned unopened.
At the same time, the Germans set about liquidating the ghettos in occupied Poland. July 22, 1942, when the deportation of Jews from Warsaw to the death camp in Treblinka began, is regarded as a symbolic date. A decided majority of the Polish Jews were killed in a little over half a year, after which the SS began liquidating the Aktion Reinhard camps. However, the last great death camp—Auschwitz—remained in existence until the beginning of 1945. It was mainly Jews from Western and Southern Europe, from the liquidated labor camps, and the ghettos in Sosnowiec and Łódź, who died in the gas chambers there.

To those whose knowledge of the Holocaust consists, essentially, of the fact that Hitler killed the Jews, it often comes as a surprise to learn that, in the first seven and a half years of Nazi rule in Germany, he did no such killing: Jews were not deliberately murdered by the Nazi regime until the invasion of the Soviet Union in June 1941. In Karl Schleunes’ famous phrase, there was a “twisted road to Auschwitz,” with a gradual but by no means direct path to continental genocide. For the first few years of Nazi rule in Germany”Hitler came to power in January 1933 as chancellor and consolidated his rule after the death of President von Hindenburg a year later”Nazi policy aimed “merely” at the removal of Jews from positions of authority, especially in the state sector, with such removal constantly reinforced by the totalitarian regime’s propaganda and its police terrorism.
Mengele assembled hundreds of pairs of twins and sometimes spent hours measuring various parts of their bodies and taking careful notes. He often injected one twin with mysterious substances and monitored the illness that ensued. He applied painful clamps to children’s limbs to induce gangrene, injected dye into their eyes – which were then shipped back to a pathology lab in Germany – and gave them spinal taps.
Life within Nazi concentration camps was horrible. Prisoners were forced to do hard physical labor and given little food. Prisoners slept three or more to a crowded wooden bunk; bedding was unheard of. Torture within the concentration camps was common and deaths were frequent. At a number of concentration camps, Nazi doctors conducted medical experiments on prisoners against their will.

The Holocaust was the systematic, bureaucratic, state-sponsored persecution and murder of six million Jews by the Nazi regime and its collaborators. Holocaust is a word of Greek origin meaning “sacrifice by fire.” The Nazis, who came to power in Germany in January 1933, believed that Germans were “racially superior” and that the Jews, deemed “inferior,” were an alien threat to the so-called German racial community.
The mass killings of Jews in the occupied Soviet territories were assigned to four SS formations called Einsatzgruppen ("task groups"), which were under Heydrich's overall command. Similar formations had been used to a limited extent in Poland in 1939, but the ones operating in the Soviet territories were much larger.[242] The Einsatzgruppen's commanders were ordinary citizens: the great majority were professionals and most were intellectuals.[243] By the winter of 1941–1942, the four Einsatzgruppen and their helpers had killed almost 500,000 people.[244] The largest massacre of Jews by the mobile killing squads in the Soviet Union was at a ravine called Babi Yar outside Kiev,[245] where 33,771 Jews were killed in a single operation on 29–30 September 1941.[246][n] A mixture of SS and Security Police, assisted by Ukrainian police, carried out the killings.[248] Although they did not actively participate in the killings, men of the German 6th Army helped round up the Jews of Kiev and transport them to be shot.[249] By the end of the war, around two million are thought to have been victims of the Einsatzgruppen and their helpers in the local population and the German Army. Of those, about 1.3 million were Jews and up to a quarter of a million Roma.[250]
On 31 May 1985, acting on intelligence received by the West German prosecutor's office, police raided the house of Hans Sedlmeier, a lifelong friend of Mengele and sales manager of the family firm in Günzburg.[109] They found a coded address book and copies of letters sent to and received from Mengele. Among the papers was a letter from Wolfram Bossert notifying Sedlmeier of Mengele's death.[110] German authorities alerted the police in São Paulo, who then contacted the Bosserts. Under interrogation, they revealed the location of Mengele's grave,[111] and the remains were exhumed on 6 June 1985. Extensive forensic examination indicated with a high degree of probability that the body was indeed that of Josef Mengele.[112] Rolf Mengele issued a statement on 10 June confirming that the body was his father's, and he admitted that the news of his father's death had been concealed in order to protect the people who had sheltered him for many years.[113]
The SS used Sonderkommandos (Jewish slave laborers) during the gassing process to usher people in the undressing room and to clean up the gas chamber afterwards. One such survivor recalled the scene at Auschwitz: "There were all sorts of reactions from all sorts of people. There were disabled people. They would take out their war service cards showing that they had fought in the First World War with all kinds of distinctions and medals which they had from that time. They shouted, what's this? We fought for Germany. Now they're going to burn us, to kill us. This is impossible. We protest against such a thing. But everyone just laughed at them. Because they didn't take it seriously, these SS men. They laughed at the whole thing."

The ideology of Nazism brought together elements of antisemitism, racial hygiene, and eugenics, and combined them with pan-Germanism and territorial expansionism with the goal of obtaining more Lebensraum (living space) for the Germanic people.[16] Nazi Germany attempted to obtain this new territory by attacking Poland and the Soviet Union, intending to deport or kill the Jews and Slavs living there, who were considered by the Nazis to be inferior to the Aryan master race.[17]