To concentrate and monitor the Jewish population as well as to facilitate later deportation of the Jews, the Germans and their collaborators created ghettos, transit camps, and forced-labor camps for Jews during the war years. The German authorities also established numerous forced-labor camps, both in the so-called Greater German Reich and in German-occupied territory, for non-Jews whose labor the Germans sought to exploit.

Walking the grounds of the memorial site, I arrived with Freund at the lip of the pit that had housed the bunker where Zeidel and the other members of the Burning Brigade had lived. The circumference was tremendous, nearly 200 feet in total. On its grassy floor, the Vilna Gaon Museum had erected a model of a double-sided ramp that the Burning Brigade had used to drop bodies onto the pyres.

There are different methods of execution. People are shot by firing squads, killed by an "air hammer", and poisoned by gas in special gas chambers. Prisoners condemned to death by the Gestapo are murdered by the first two methods. The third method, the gas chamber, is employed for those who are ill or incapable of work and those who have been brought in transports especially for the purpose/Soviet prisoners of war, and, recently Jews.[333]
As the unsuspecting people were herded off the train and ordered into separate lines, SS officers shouted in German, "Zwillinge!" (Twins!). Parents were forced to make a quick decision. Unsure of their situation, already being separated from family members when forced to form lines, seeing barbed wire, smelling an unfamiliar stench -- was it good or bad to be a twin?

The Jews killed represented around one third of the world population of Jews,[398] and about two-thirds of European Jewry, based on an estimate of 9.7 million Jews in Europe at the start of the war.[399] Much of the uncertainty stems from the lack of a reliable figure for the number of Jews in Europe in 1939, numerous border changes that make avoiding double-counting of victims difficult, lack of accurate records from the perpetrators, and uncertainty about whether deaths occurring months after liberation, but caused by the persecution, should be counted.[392]

The Final Solution was a plan of Adolf Hitler's to kill all the Jews in Europe. Hitler's Anti- Semitic ideas were so strong that he released hatred by mass murder. Before Hitler decided to become dictator the Final Solution was already in his head. In a couple of books written by Gerald Fleming Hitler says '' Once I  am really in power my first task will be the genocide of the Jews .'' He achieved his goal by killing six million Jews. Hitler began  the final solution in every European Nation he was  control of. The Jews were sent to concentration/death camps.
Gentiles whose status placed them on the periphery of a community generally had fewer social constraints and a higher level of independence. This sense of independence, in turn, seems to have made many rescuers more likely to act in accordance with their personal values and moral precepts, even when these standards were in opposition to societal norms. Such rescuers were propelled by values connected to self-approval. In interviews, they insisted again and again that they had to be at peace with themselves, with their ideas of what was right or wrong.
Because of this book, we will remember the names, the quirks -- the characters -- of the eight people who inhabited the secret annex and their brave Dutch helpers. We will be able to visualize them long after everyone who witnessed that horrific era is gone. It is because of Anne's diary that she and her family are among the few we will remember -- the ones we feel we know -- among the millions who suffered and died as she did.
This past fall, I reached out to Hana Amir, Zeidel’s daughter, and we spoke several times over Skype. From her home in Tel Aviv, Amir, who is slight and spectacled, with a gray bob, told me about how she learned of her father’s story. When Amir was young, Zeidel worked as a truck driver, and he was gone for long stretches at a time. At home, he was withholding with his daughter and two sons. “My father was of a generation that didn’t talk about their emotions, didn’t talk about how they felt about what they’d been through,” Amir told me. “This was their coping mechanism: If you’re so busy with moving forward, you can disconnect from your memories.” But there were signs that the past wasn’t done with Zeidel: Amir believes he suffered from recurrent nightmares, and he was fastidious about his personal hygiene—he washed his hands many times a day.
Mengele's research subjects were better fed and housed than the other prisoners, and temporarily spared from execution in the gas chambers.[42] He established a kindergarten for children who were the subjects of his experiments, as well as the preschool children from the Romani camp. The facility provided better food and living conditions than other areas of the camp, and included a children's playground.[43] When visiting his young subjects, he introduced himself as "Uncle Mengele" and offered them sweets,[44] while at the same time being personally responsible for the deaths of an unknown number of victims whom he killed via lethal injection, shootings, beatings, and his deadly experiments.[45] In his 1986 book, Lifton describes Mengele as sadistic, lacking empathy, and extremely antisemitic, believing the Jews should be eliminated entirely as an inferior and dangerous race.[46] Rolf Mengele later claimed that his father had shown no remorse for his wartime activities.[47]
Unlike Belzec, Sobibor, Treblinka, and Lublin-Majdanek,[96] which were built in the occupied General Government territory inhabited by the largest concentrations of Jews,[97] the killing centre at Auschwitz subcamp of Birkenau operated in Polish areas annexed by Nazi Germany directly. The new gas chambers at Bunker I were finished around March 1942 when the Final Solution was officially launched at Belzec. Until mid-June 20,000 Silesian Jews were killed there using Zyklon B. In July 1942, Bunker II became operational. In August, another 10,000–13,000 Polish Jews from Silesia perished,[98] along with 16,000 French Jews declared 'stateless',[99] and 7,700 Jews from Slovakia.[98]
Any remaining notes Mengele carried with him on his escape to South America and those were never found. Some forty years after the war, only a few of these twins could be found, many living in Israel and the United States. Strangely enough, many of them recall Mengele as a gentle, affable man who befriended them as children and gave them chocolates. Since many had immediately been separated from their families upon entering the camp, Mengele became a sort of father figure. Still a tension existed, that at any time they could be killed if they did not keep a low profile. Older twins recognized his kindness as a deception ...

Toward the end of the diary we see just how difficult things have become for the family which is not always accurately represented in the movie versions of the diary. They were starving, never full at meals, and having to exist off moldy and tasteless food. There was one bathroom for eight people and at times the toilet could not be flushed. They had threadbare, holey clothing which was too small. The cat used the bathroom wherever it wanted towards the end, and their helpers came less and less frequently as circumstances got worse and worse. Their conditions deteriorated in ways that children living in the comfort of the 21st century could never imagine. It's so important for kids to read about these conditions and contrast them with their own in order to not only feel grateful but to feel sympathy for those who lived in these terrible times.
“With respect of the Jewish Question, the Führer has decided to make a clean sweep. He prophesied to the Jews that if they again brought about a world war, they would live to see their annihilation in it. That wasn’t just a catchword… If the German people have now again sacrificed 160,000 dead on the eastern front, then those responsible for this bloody conflict will have to pay with their lives.”
Below are figures for the number of Jews murdered in each country that came under German domination. They are estimates, as are all figures relating to Holocaust victims. The numbers given here for Czechoslovakia, Hungary and Romania are based on their territorial borders before the 1938 Munich agreement. The total number of six million Jews murdered during the Holocaust, which emerged from the Nuremberg trials, is also an estimate. Numbers have ranged between five and seven million killed.

Unlike the death camps of Treblinka, Chelmno, Sobibor, and Belzec, which were built and operated solely to kill Jews, the two death camps of Maidanek and Auschwitz also had a work camp attached. Upon arrival at these two camps, a selection was made at the train station concerning which Jews (about 10 percent of the arrivals) would be permitted to live and escape immediate gassing in the gas chambers. These “lucky” survivors were permitted to live only to the extent that they endured the physical and emotional trauma inflicted upon them. They were given a food ration that permitted them to survive for only three months. As they died from exhaustion, beatings, and starvation, they were replaced with newly arrived victims. Auschwitz was also used as the site for medical experimentation. Many of these experiments had little scientific value but were only exercises to discover how much torture a victim could endure until death. By the end of 1944, an estimated two-and-a-half million Jews had died at Auschwitz. More than a quarter of a million Gypsies also died there.
First, I want to say that I absolutely believe that this book should still be included in school curriculum. The only thing 'new' about it is that pages and passages were added. Nothing was taken out and the translation was not changed. Reports that the book is so different that it's nothing like the original are false. Reports that the story is different are false.

Additional barriers stemmed from antisemitism, which was rampant in the cultural climate of Eastern Europe. Gentile rescuers thus often feared censure from their fellow citizens. Moreover, significant numbers of gentiles had to confront their own personal, sometimes unconscious, anti-Jewish feelings. Indeed, postwar interviews with rescuers have shown that although they tended to describe the Jews they saved as fine people, many characterized Jews in general as dirty, loud, greedy, aggressive, dishonest, deceitful, or underhanded.

The impact of the Holocaust varied from region to region and from year to year in the 21 countries that were directly affected. Nowhere was the Holocaust more intense and sudden than in Hungary. What took place over several years in Germany occurred over 16 weeks in Hungary. Entering the war as a German ally, Hungary had persecuted its Jews but not permitted the deportation of Hungarian citizens. In 1941 foreign Jewish refugees were deported from Hungary and were shot by Germans in Kam’yanets-Podilskyy, Ukraine. After Germany invaded Hungary on March 19, 1944, the situation changed dramatically. By mid-April the Nazis had confined Jews to ghettos. On May 15, deportations began, and over the next 55 days the Nazis deported more than 437,000 Jews from Hungary to Auschwitz on 147 trains.
Raphael Lemkin, a holocaust survivor who worked on the Nuremberg Trials, coined the term genocide and spent 4 years pushing for it to be added to international law. As Champetier de Ribes, the French Prosecutor at the Nuremberg Trials explained “This [was] a crime so monstrous, so undreamt of in history throughout the Christian era up to the birth of Hitlerism that the term ‘genocide’ has had to be coined to define it.” Ultimately, in 1948 The United Nations Convention on the Prevention and Punishment of Genocide was adopted, and it entered into force in 1951. The convention defined genocide in legal terms based on Lemkin’s work, and is the basis for genocide prevention efforts today.
Of all the aspects of Mengele’s character which are of interest, his research on twins is the focus of the C.A.N.D.L.E.S. organization. Beginning in 1944, twins were selected and placed in special barracks. Some of those selected - like Irene and Rene Guttman were already in the camp. Others like Eva and Miriam Mozes were selected on the ramp and placed in the twins barracks. It is believed that Mengele had worked with twins under Verschuer at the University of Frankfurt. Auschwitz offered Mengele unlimited number of specimens where twins could be studied at random. According to Dr. Miklos Nyiszli in Auschwitz: A Doctor's Eyewitness Account, twins provided the perfect experimental specimens. One could serve as a control while the other endured the experiments. It was well known in the camp that when a twin went to the infirmary, (s)he never returned and that the other twin disappeared too (Eva Mozes Kor, Echoes from Auschwitz). Nyiszli describes the shots of phenol which were used to kill the second twin.

Despite the Vatican failure to act, many priests, nuns, and laymen hid Jews in monasteries, convents, schools, and hospitals and protected them with false baptismal certificates. However, as Saul Friedlander’s memoirs show, many Catholic priests proselytized and converted their “guests.” Moreover, after the war, many Jewish children were never returned to Jewish families, even after lengthy court battles.
Frank’s inclusion of sexual material in her diaries makes sense—during her 25 months of hiding, she matured from a young girl into a young woman and even conducted a brief romantic relationship with Peter van Pels, a boy who hid with the Frank family. But to those who have read Frank’s diary, the real surprise is not that she addressed sexual topics—it’s that there’s more to discover about a 15-year-old murdered 73 years ago.

Mengele injected chemicals into the eyes of children in an attempt to change their eye color. Unfortunately a strict veil of secrecy over the experiments enabled Mengele to do his work more effectively.The full extent of his gruesome work will never be known because the records he sent to Dr. Von Verschuer at the Kaiser Wilhelm Institute were shipped out in two truckloads and destroyed by the latter.
They set off at 11 p.m., in groups of ten. The first group emerged from the tunnel without incident. Zeidel recalled slithering on his stomach toward the edge of the camp. He scarcely dared to exhale; his heart slammed against his chest wall. Later, Farber would speculate that it was the snap of a twig that alerted their captors to the escape. Dogim attributed it to a blur of movement spotted by the guards.

He acted instantly. He sent Otto Frank a copy of “In Search” and in effect offered his services as an unofficial agent to secure British and American publication, asserting his distance from any financial gain; his interest, he said, was purely “one of sympathy.” He saw in the diary the possibility of “a very touching play or film,” and asked Frank’s permission to explore the idea. Frank at first avoided reading Levin’s book, saturated as it was in passions and commitments so foreign to his own susceptibilities. He was not unfamiliar with Levin’s preoccupations; he had seen and liked one of his films. He encouraged Levin to go ahead—though a dramatization, he observed, would perforce “be rather different from the real contents” of the diary. Hardly so, Levin protested: no compromise would be needed; all the diarist’s thoughts could be preserved.

The Polish government-in-exile in London learned about the extermination camps from the Polish leadership in Warsaw, who from 1940 "received a continual flow of information about Auschwitz", according to historian Michael Fleming.[333] This was in large measure thanks to Captain Witold Pilecki of the Polish Home Army, who allowed himself to be arrested in Warsaw and spent 945 days in Auschwitz from September 1940 until April 1943, organizing the resistance movement inside the camp.[334]
After 24 hours in the darkness, she followed one shining light that turned out to be at an unguarded barracks. The small group of surprised prisoners took her in. This group, with Lyon among them, was ordered into cattle cars and taken away from Auschwitz. Lyon longed to see her mother and sister again, but knew she faced certain death if she were discovered in Auschwitz.

I really wish I had a different translation of this book because this one lacks a lot of the personality and ease compared to the audiobook version I partially listened to. But this book should definitely be one of the books you read before you die because it is so tragic and enlightening. Nothing makes me angrier and sadder than seeing someone with so much potential and excitement rave about their passion for life, and in the end, never made it to accomplish their dreams, or see their work publ ...more
But throughout Nazi-occupied Europe, relatively few non-Jewish persons were willing to risk their own lives to help the Jews. Notable exceptions included Oskar Schindler, a German who saved 1200 Jews by moving them from Plaszow labor camp to his hometown of Brunnlitz. The country of Denmark rescued nearly its entire population of Jews, over 7000, by transporting them to safety by sea. Italy and Bulgaria both refused to cooperate with German demands for deportations. Elsewhere in Europe, people generally stood by passively and watched as Jewish families were marched through the streets toward waiting trains, or in some cases, actively participated in Nazi persecutions.

In September 1939, the German army occupied the western half of Poland. German police soon forced tens of thousands of Polish Jews from their homes and into ghettoes, giving their confiscated properties to ethnic Germans (non-Jews outside Germany who identified as German), Germans from the Reich or Polish gentiles. Surrounded by high walls and barbed wire, the Jewish ghettoes in Poland functioned like captive city-states, governed by Jewish Councils. In addition to widespread unemployment, poverty and hunger, overpopulation made the ghettoes breeding grounds for disease such as typhus.

According to Dr. Hans Münch, a colleague of Mengele’s at Auschwitz, Mengele arrived at the camp in a somewhat privileged position - he had been wounded on the Eastern front and was the recipient of an array of medals, including the Iron Cross. It would also appear that Mengele selected Auschwitz because of the opportunities there to continue his research. According to one source (Lifton, The Nazi Doctors) he did receive financial support for his work there. Support for continuing his professional career in genetics appears in another book, And the Violins Stopped Playing written by Alexander Ramati, where it is reported that a Professor Epstein told a comrade that "he (Mengele) has offered to prolong my life. Mind you, not to save it, just to prolong it, if I prepare a scientific paper on noma, which he would publish under his own name. It will keep him away from the front, he said, and justify his presence here as a scientist."
An Israeli historian Dina Porat claimed that the Final Solution, i.e.: "the systematic overall physical extermination of Jewish communities one after the other – began in Lithuania" during the massive German chase after the Red Army across the Baltic states in Reichskommissariat Ostland.[53] The subject of the Holocaust in Lithuania has been analysed by Konrad Kweit from USHMM who wrote: "Lithuanian Jews were among the first victims of the Holocaust [beyond the eastern borders of occupied Poland]. The Germans carried out the mass executions [...] signaling the beginning of the 'Final Solution'."[54] About 80,000 Jews were killed in Lithuania by October (including in formerly Polish Wilno) and about 175,000 by the end of 1941 according to official reports.[53]
British troops guard Alex Pickowski, Camp Commandant of Dechau concentration camp  © The discovery of Belsen brought home the shocking truth about Nazi atrocities, but the facts had been known for some time. As early as the summer of 1941, British signals intelligence had intercepted and decoded radio messages from German police units co-operating with the Einsatzgruppen, and details of the killings of Jews were included in the monthly summaries that were sent to Churchill. Churchill responded with a speech on August 24 1941 in which he called the massacres 'a crime without a name' but erroneously identified the victims as 'Russian patriots defending their native soil'. Otherwise, these facts were not made public.
The killings continued uninterrupted. On 12 October 1941, in Stanisławów, some 10,000–12,000 Jewish men, women, and children were shot at the Jewish cemetery by the German uniformed SS-men and Ukrainian Auxiliary Police during the so-called "Bloody Sunday" (de).[64] The shooters began firing at 12 noon and continued without stopping by taking turns. There were picnic tables set up on the side with bottles of vodka and sandwiches for those who needed to rest from the deafening noise of gunfire.[65] It was the single largest massacre of Polish Jews in Generalgouvernement prior to mass gassings of Aktion Reinhard, which commenced at Bełżec in March 1942. Notably, the extermination operations in Chełmno had begun on 8 December 1941, one-and-a-half month before Wannsee, but Chełmno – located in Reichsgau Wartheland – was not a part of Reinhard, and neither was Auschwitz-Birkenau functioning as an extermination center until November 1944 in Polish lands annexed by Hitler and added to Germany proper.[65][66]

An Israeli historian Dina Porat claimed that the Final Solution, i.e.: "the systematic overall physical extermination of Jewish communities one after the other – began in Lithuania" during the massive German chase after the Red Army across the Baltic states in Reichskommissariat Ostland.[53] The subject of the Holocaust in Lithuania has been analysed by Konrad Kweit from USHMM who wrote: "Lithuanian Jews were among the first victims of the Holocaust [beyond the eastern borders of occupied Poland]. The Germans carried out the mass executions [...] signaling the beginning of the 'Final Solution'."[54] About 80,000 Jews were killed in Lithuania by October (including in formerly Polish Wilno) and about 175,000 by the end of 1941 according to official reports.[53]
In 1942, fifteen Nazi leaders met at a conference in Wannsee, Germany to discuss the “Jewish Question”. Their job was to decide the most efficient way to exterminate the Jews. They decided that Jews would be sent to extermination camps where they would be sent to showers. But instead of water coming out of the faucet, they faced their death when poisonous Zyklon-B gas leaked through the showerheads to suffocate them. This decision at the conference is called the “Final Solution.”
In 1950, the Dutch translator Rosey E. Pool made a first translation of the Diary, which was never published.[26] At the end of 1950, another translator was found to produce an English-language version. Barbara Mooyaart-Doubleday was contracted by Vallentine Mitchell in England, and by the end of the following year, her translation was submitted, now including the deleted passages at Otto Frank's request. As well, Judith Jones, while working for the publisher Doubleday, read and recommended the Diary, pulling it out of the rejection pile.[27] Jones recalled that she came across Frank's work in a slush pile of material that had been rejected by other publishers; she was struck by a photograph of the girl on the cover of an advance copy of the French edition. "I read it all day", she noted. "When my boss returned, I told him, 'We have to publish this book.' He said, 'What? That book by that kid?'" She brought the diary to the attention of Doubleday's New York office. "I made the book quite important because I was so taken with it, and I felt it would have a real market in America. It's one of those seminal books that will never be forgotten", Jones said.[28] The book appeared in the United States and in the United Kingdom in 1952, becoming a best-seller. The introduction to the English publication was written by Eleanor Roosevelt.
Anti-Jewish measures were introduced in Slovakia, which would later deport its Jews to German concentration and extermination camps.[175] Bulgaria introduced anti-Jewish measures in 1940 and 1941, including the requirement to wear a yellow star, the banning of mixed marriages, and the loss of property. Bulgaria annexed Thrace and Macedonia, and in February 1943 agreed to deport 20,000 Jews to Treblinka; all 11,000 Jews from the annexed territories were sent to their deaths, and plans were made to deport an additional 6,000–8,000 Bulgarian Jews from Sofia to meet the quota.[176] When the plans became public, the Orthodox Church and many Bulgarians protested, and King Boris III canceled the deportation of Jews native to Bulgaria.[177] Instead, they were expelled to the interior pending further decision.[176] Although Hungary expelled Jews who were not citizens from its newly annexed lands in 1941, it did not deport most of its Jews[178] until the German invasion of Hungary in March 1944. Between 15 May and 9 July 1944, 440,000 Hungarian Jews were deported to Auschwitz.[179] In late 1944 in Budapest, nearly 80,000 Jews were killed by the Hungarian Arrow Cross battalions.[180]
To come to the diary without having earlier assimilated Elie Wiesel’s “Night” and Primo Levi’s “The Drowned and the Saved” (to mention two witnesses only), or the columns of figures in the transport books, is to allow oneself to stew in an implausible and ugly innocence. The litany of blurbs—“a lasting testament to the indestructible nobility of the human spirit,” “an everlasting source of courage and inspiration”—is no more substantial than any other display of self-delusion. The success—the triumph—of Bergen-Belsen was precisely that it blotted out the possibility of courage, that it proved to be a lasting testament to the human spirit’s easy destructibility. “Hier ist kein Warum,” a guard at Auschwitz warned: here there is no “why,” neither question nor answer, only the dark of unreason. Anne Frank’s story, truthfully told, is unredeemed and unredeemable.

In the eyes of the world, we’re doomed, but if after all this suffering, there are still Jews left, the Jewish people will be held up as an example. Who knows, maybe our religion will teach the world and all the people in it about goodness, and that’s the reason, the only reason, we have to suffer. . . . God has never deserted our people. Through the ages Jews have had to suffer, but through the ages they’ve gone on living, and the centuries of suffering have only made them stronger.

And audiences multiplied: the Hacketts’ drama went all over the world—including Israel, where numbers of survivors were remaking their lives—and was everywhere successful. The play’s reception in Germany was especially noteworthy. In an impressive and thorough-going essay entitled “Popularization and Memory,” Alvin Rosenfeld, a professor of English at Indiana University, recounts the development of the Anne Frank phenomenon in the country of her birth. “The theater reviews of the time,” Rosenfeld reports, “tell of audiences sitting in stunned silence at the play and leaving the performance unable to speak or to look one another in the eye.” These were self-conscious and thin-skinned audiences; in the Germany of the fifties, theatregoers still belonged to the generation of the Nazi era. (On Broadway, Kanin had unblinkingly engaged Gusti Huber, of that same generation, to play Anne Frank’s mother. As a member of the Nazi Actors Guild until Germany’s defeat, Huber had early on disparaged “non-Aryan artists.”) But the strange muteness in theatres may have derived not so much from guilt or shame as from an all-encompassing compassion; or call it self-pity. “We see in Anne Frank’s fate,” a German drama critic offered, “our own fate—the tragedy of human existence per se.” Hannah Arendt, philosopher and Hitler refugee, scorned such oceanic expressions, calling it “cheap sentimentality at the expense of a great catastrophe.” And Bruno Bettelheim, a survivor of Dachau and Buchenwald, condemned the play’s most touted line: “If all men are good, there was never an Auschwitz.” A decade after the fall of Nazism, the spirited and sanitized young girl of the play became a vehicle for German communal identification—with the victim, not the persecutors—and, according to Rosenfeld, a continuing “symbol of moral and intellectual convenience.” The Anne Frank whom thousands saw in seven openings in seven cities “spoke affirmatively about life and not accusingly about her torturers.” No German in uniform appeared onstage. “In a word,” Rosenfeld concludes, “Anne Frank has become a ready-at-hand formula for easy forgiveness.”
Yugoslavia and Greece were invaded in April 1941 and surrendered before the end of the month. Germany and Italy divided Greece into occupation zones but did not eliminate it as a country. Yugoslavia, home to around 80,000 Jews, was dismembered; regions in the north were annexed by Germany and regions along the coast made part of Italy. The rest of the country was divided into the Independent State of Croatia, nominally an ally of Germany, and Serbia, which was governed by a combination of military and police administrators.[167] According to historian Jeremy Black, Serbia was declared free of Jews in August 1942.[168] Croatia's ruling party, the Ustashe, killed the country's Jews, and killed or expelled Orthodox Christian Serbs and Muslims.[167] Jews and Serbs alike were "hacked to death and burned in barns", according to Black. One difference between the Germans and Croatians was that the Ustashe allowed its Jewish and Serbian victims to convert to Catholicism so they could escape death.[168]
Whereas Christopher Browning places the Nazi plan to exterminate the Jews in the context of the Wehrmacht victories on the Eastern front, Cesarani argues that the German subsequent realisation that there would be no swift victory over the Soviet Union "scuppered the last territorial 'solution' still on the table: expulsion to Siberia".[119] Germany's declaration of war on the United States on December 11, 1941, "meant that holding European Jews hostage to deter the US from entering the conflict was now pointless. As Joseph Goebbels put it when he summarised a secret speech Hitler made on 12 December 1941: 'The world war is here, the destruction of the Jews must be the inevitable consequence'."[119][120] Cesarani concludes, the Holocaust "was rooted in anti-Semitism, but it was shaped by war".[119] The fact that the Nazis were, ultimately, so successful in killing between five and six million Jews was not due to the efficiency of the Third Reich or the clarity of their policies. "Rather, the catastrophic rate of killing was due to German persistence … and the duration of the murderous campaigns. This last factor was largely a consequence of allied military failure."[121]

Genealogical Studies in the Cases of Cleft Lip-Jaw-Palate (1938), his medical dissertation, earned him a doctorate in medicine from Frankfurt University. Studying the influence of genetics as a factor in the occurrence of this deformity, Mengele conducted research on families who exhibited these traits in multiple generations. The work also included notes on other abnormalities found in these family lines.[7][122]