Meanwhile, Hitler continued his conquest of Europe, invading Belgium, Holland, Luxembourg and France, placing ever-increasing numbers of Jews under Nazi control. The Nazis then began carefully tallying up the actual figures and also required Jews to register all of their assets. But the overall question remained as to what to do with the millions of Jews now under Nazi control - referred to by the Nazis themselves as the Judenfrage (Jewish question).
In the 1960s, Otto Frank recalled his feelings when reading the diary for the first time, "For me, it was a revelation. There, was revealed a completely different Anne to the child that I had lost. I had no idea of the depths of her thoughts and feelings."[23] Michael Berenbaum, former director of the United States Holocaust Memorial Museum, wrote, "Precocious in style and insight, it traces her emotional growth amid adversity. In it, she wrote, 'In spite of everything, I still believe that people are really good at heart.'"[23]
It is estimated that by 1942 Einsatzgruppen had killed more than 1 million Soviet troops. These victims were either shot or gassed. Jews were not the only ones killed. People who opposed Hitler were also murdered. 20th century techniques of mass production were applied in the Final Solution. Engineers of the Final Solution used these ways to cheaply and efficiently murder millions of Jews there were many ways the Nazis murdered people. Some ways were crematoriums, electrocution, injections, flame throwers, hand grenades, and gas chambers. Units of the S.S. that were specially trained followed German troops called the first wave. These squads made up the Einsatzgruppen. Nazis genocide was targeted towards Jews mass murder was targeted towards other Non-Aryans.      
In his 1965 essay "Command and Compliance", which originated in his work as an expert witness for the prosecution at the Frankfurt Auschwitz Trials, the German historian Hans Buchheim wrote there was no coercion to murder Jews and others, and all who committed such actions did so out of free will. Buchheim wrote that chances to avoid executing criminal orders "were both more numerous and more real than those concerned are generally prepared to admit",[468] and that he found no evidence that SS men who refused to carry out criminal orders were sent to concentration camps or executed.[469] Moreover, SS rules prohibited acts of gratuitous sadism, as Himmler wished for his men to remain "decent"; acts of sadism were carried out on the initiative of those who were either especially cruel or wished to prove themselves ardent National Socialists.[468] Finally, he argued that those of a non-criminal bent who committed crimes did so because they wished to conform to the values of the group they had joined and were afraid of being branded "weak" by their colleagues if they refused.[470]
Here the prophet Isaiah is offering reassurance to two classes of people. The first is the nekhar, or alien, a word that in this context clearly refers to a Gentile (as it does elsewhere in the Bible). While such a person—the reference may be to a convert or to one taking on the intermediate status of a God-fearing non-Jew—might fear that not being born a Jew places an insurmountable barrier between him and God, the prophet assures him to the contrary.
When she was 17, Amir took a class about the Holocaust. “How did you escape, Papa?” she remembers asking afterward. He agreed to explain, but what he recounted were mostly technical details: the size of the bunker, the number of bodies consumed by the flames. He explained that in addition to the five men who had fled with him to the Rudnitsky Woods, six other members of the Burning Brigade had survived the escape. The rest had perished.
Mengele's eye experiments included attempts to change the eye color by injecting chemicals into the eyes of living subjects, and he killed people with heterochromatic eyes so that the eyes could be removed and sent to Berlin for study.[53] His experiments on dwarfs and people with physical abnormalities included taking physical measurements, drawing blood, extracting healthy teeth, and treatment with unnecessary drugs and X-rays.[3] Many of his victims were dispatched to the gas chambers after about two weeks, and their skeletons sent to Berlin for further analysis.[54] Mengele sought out pregnant women, on whom he would perform experiments before sending them to the gas chambers.[55] Witness Vera Alexander described how he sewed two Romani twins together, back to back, in a crude attempt to create conjoined twins;[50] both children died of gangrene after several days of suffering.[56]

Some Germans, even some Nazis, dissented from the murder of the Jews and came to their aid. The most famous was Oskar Schindler, a Nazi businessman, who had set up operations using involuntary labour in German-occupied Poland in order to profit from the war. Eventually, he moved to protect his Jewish workers from deportation to extermination camps. In all occupied countries, there were individuals who came to the rescue of Jews, offering a place to hide, some food, or shelter for days or weeks or even for the duration of the war. Most of the rescuers did not see their actions as heroic but felt bound to the Jews by a common sense of humanity. Israel later recognized rescuers with honorary citizenship and commemoration at Yad Vashem, Israel’s memorial to the Holocaust.
In March 1951, the government of Israel requested $1.5 billion from the Federal Republic of Germany to finance the rehabilitation of 500,000 Jewish survivors, arguing that Germany had stolen $6 billion from the European Jews. Israelis were divided about the idea of taking money from Germany. The Conference on Jewish Material Claims Against Germany (known as the Claims Conference) was opened in New York, and after negotiations, the claim was reduced to $845 million.[463][464]
Germany invaded Norway and Denmark on 9 April 1940, during Operation Weserübung. Denmark was overrun so quickly that there was no time for an organized resistance to form. Consequently, the Danish government stayed in power and the Germans found it easier to work through it. Because of this, few measures were taken against the Danish Jews before 1942.[157] By June 1940 Norway was completely occupied.[158] In late 1940, the country's 1,800 Jews were banned from certain occupations, and in 1941 all Jews had to register their property with the government.[159] On 26 November 1942, 532 Jews were taken by police officers, at four o'clock in the morning, to Oslo harbour, where they boarded a German ship. From Germany they were sent by freight train to Auschwitz. According to Dan Stone, only nine survived the war.[160]
Dr. Mengele was known by all the prisoners because of his good looks and charm. According to Gerald L. Posner and John Ware, the authors of "Mengele, the Complete Story," many of the children in the Birkenau camp "adored Mengele" and called him "Uncle Pepi." This information came from Vera Alexander, a survivor of Birkenau, who said that Dr. Mengele brought chocolate and the most beautiful clothes for the children, including hair ribbons for the little girls.
Mengele is known as the “Angel of Death,” or sometimes as the “White Angel,” for his coldly cruel demeanor on the ramp. He is associated more closely with this “selection duty” than any other medical officer at Auschwitz, although by most accounts he performed this task no more often than any of his colleagues. The association is partially explained by his postwar notoriety. The pervasive image of Mengele at the ramp in so many survivors' accounts has also to do with the fact that Mengele often appeared “off-duty” in the selection area whenever trainloads of new prisoners arrived at Auschwitz, searching for twins.
What had caused Crawford to change her mind so precipitately? She had given Levin’s script for further consideration to Lillian Hellman and to the producers Robert Whitehead and Kermit Bloomgarden. All were theatre luminaries; all spurned Levin’s work. Frank’s confidence in Levin, already much diminished, failed altogether. Advised by Doubleday, he put his trust in the Broadway professionals, while Levin fought on alone. Famous names—Maxwell Anderson, John Van Druten, Carson McCullers—came and went. Crawford herself ultimately pulled out, fearing a lawsuit by Levin. In the end—with the vigilant Levin still agitating loudly and publicly for the primacy of his work—Kermit Bloomgarden surfaced as producer and Garson Kanin as director. Hellman had recommended Bloomgarden; she had also recommended Frances Goodrich and Albert Hackett. The Hacketts had a long record of Hollywood hits, from “Father of the Bride” to “It’s a Wonderful Life,” and they had successfully scripted a series of lighthearted musicals. Levin was appalled—had his sacred vision been pushed aside not for the awaited world-famous dramatist but for a pair of frivolous screen drudges, mere “hired hands”?
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.[2][3]