Via the offices of the Sicherheitsdienst, the German security police, prison in Amsterdam, and the Westerbork transit camp, the people from the Secret Annex were put on transport to the Auschwitz-Birkenau concentration and extermination camp. The train journey took three days, during which Anne and over a thousand others were packed closely together in cattle wagons. There was little food and water and only a barrel for a toilet. 

Medical experiments, many of them pseudoscientific, were performed on concentration camp inmates beginning in 1941.[395] The most notorious doctor to perform medical experiments was SS-Hauptsturmführer Dr. Josef Mengele, camp doctor at Auschwitz.[396] Many of his victims died or were intentionally killed.[397] Concentration camp inmates were made available for purchase by pharmaceutical companies for drug testing and other experiments.[398]

Racism, especially antisemitism, was a central feature of the regime. The Germanic peoples were considered by the Nazis to be the master race, the purest branch of the Aryan race. Discrimination and persecution against Jews and Romani people began in earnest after the seizure of power. The first concentration camps were established in March 1933. Jews and others deemed undesirable were imprisoned, and liberals, socialists, and communists were killed, imprisoned, or exiled. Christian churches and citizens that opposed Hitler's rule were oppressed, and many leaders imprisoned. Education focused on racial biology, population policy, and fitness for military service. Career and educational opportunities for women were curtailed. Recreation and tourism were organised via the Strength Through Joy program, and the 1936 Summer Olympics showcased Germany on the international stage. Propaganda Minister Joseph Goebbels made effective use of film, mass rallies, and Hitler's hypnotic oratory to influence public opinion. The government controlled artistic expression, promoting specific art forms and banning or discouraging others.

Other Nazis—especially those at the time associated with the party's more radical wing such as Gregor Strasser, Joseph Goebbels and Heinrich Himmler—rejected Italian Fascism, accusing it of being too conservative or capitalist.[126] Alfred Rosenberg condemned Italian Fascism for being racially confused and having influences from philosemitism.[127] Strasser criticised the policy of Führerprinzip as being created by Mussolini and considered its presence in Nazism as a foreign imported idea.[128] Throughout the relationship between Nazi Germany and Fascist Italy, a number of lower-ranking Nazis scornfully viewed fascism as a conservative movement that lacked a full revolutionary potential.[128]
Auschwitz I (or "the Main Camp") was the original camp. This camp housed prisoners, was the location of medical experiments, and the site of Block 11 (a place of severe torture) and the Black Wall (a place of execution). At the entrance of Auschwitz, I stood the infamous sign that stated "Arbeit Macht Frei" ("work makes one free"). Auschwitz I also housed the Nazi staff that ran the entire camp complex.
Stos said he survived by making himself useful. Prisoners had a better chance of staying alive if they worked under a roof—in a kitchen or an administration building—or had a skill, such as training in medicine or engineering, that made them hard to replace. “The hunger was hellish, and if you could work you could get something to eat,” Stos said. Having grown up in the countryside, he could do a little bit of everything, from pouring concrete to cutting grass. I pressed him for details of his time in the camp, but he spoke only of the work. “I had eight different professions at Auschwitz,” he said. “I knew how to take care of myself. I avoided the worst of it.”

From the start of the war, a British blockade on shipments to Germany affected its economy. Germany was particularly dependent on foreign supplies of oil, coal, and grain.[92] Thanks to trade embargoes and the blockade, imports into Germany declined by 80 per cent.[93] To safeguard Swedish iron ore shipments to Germany, Hitler ordered the invasion of Denmark and Norway, which began on 9 April. Denmark fell after less than a day, while most of Norway followed by the end of the month.[94][95] By early June, Germany occupied all of Norway.[96]
Authors of books left the country in droves and some wrote material critical of the regime while in exile. Goebbels recommended that the remaining authors concentrate on books themed on Germanic myths and the concept of blood and soil. By the end of 1933, over a thousand books—most of them by Jewish authors or featuring Jewish characters—had been banned by the Nazi regime.[464] Nazi book burnings took place; nineteen such events were held on the night of 10 May 1933.[458] Tens of thousands of books from dozens of figures, including Albert Einstein, Sigmund Freud, Helen Keller, Alfred Kerr, Marcel Proust, Erich Maria Remarque, Upton Sinclair, Jakob Wassermann, H. G. Wells, and Émile Zola were publicly burned. Pacifist works, and literature espousing liberal, democratic values were targeted for destruction, as well as any writings supporting the Weimar Republic or those written by Jewish authors.[465]
And if existence was a struggle, a war, then it made no sense to show mercy to the enemy. Like many Nazi institutions, the K.L. embodied conflicting impulses: to reform the criminal, to extort labor from the unproductive, to quarantine the contagious. But most fundamental was the impulse to dehumanize the enemy, which ended up confounding and overriding all the others. Once a prisoner ceased to be human, he could be brutalized, enslaved, experimented on, or gassed at will, because he was no longer a being with a soul or a self but a biological machine. The Muselmänner, the living dead of the camps, stripped of any capacity to think or feel, were the true product of the K.L., the ultimate expression of the Nazi world view.

It is badly lighted, full of draughts, with the brick floor covered by a layer of mud. The water is not drinkable; it has a revolting smell and often fails for many hours. The walls are covered by curious didactic frescoes: for example, there is the good Häftling [prisoner], portrayed stripped to the waist, about to diligently soap his sheared and rosy cranium, and the bad Häftling, with a strong Semitic nose and a greenish colour, bundled up in his ostentatiously stained clothes with a beret on his head, who cautiously dips a finger into the water of the washbasin. Under the first is written: "So bist du rein" (like this you are clean), and under the second, "So gehst du ein" (like this you come to a bad end); and lower down, in doubtful French but in Gothic script: "La propreté, c'est la santé" [cleanliness is health].[108]
Otto Frank spent the remainder of his life as custodian of his daughter's legacy, saying, "It's a strange role. In the normal family relationship, it is the child of the famous parent who has the honour and the burden of continuing the task. In my case the role is reversed." He recalled his publisher's explaining why he thought the diary has been so widely read, with the comment, "he said that the diary encompasses so many areas of life that each reader can find something that moves him personally".[89] Simon Wiesenthal expressed a similar sentiment when he said that the diary had raised more widespread awareness of the Holocaust than had been achieved during the Nuremberg Trials, because "people identified with this child. This was the impact of the Holocaust, this was a family like my family, like your family and so you could understand this."[90]
Röhm hoped to assume command of the army and absorb it into the ranks of the SA.[230] Hindenburg and Defence Minister Werner von Blomberg threatened to impose martial law if the activities of the SA were not curtailed.[231] Therefore, less than a year and a half after seizing power, Hitler ordered the deaths of the SA leadership, including Rohm. After the purge of 1934, the SA was no longer a major force.[38]
Forced-Labor Camps and transit camps: Forced labor camps were utilized for pointless and humiliating labor, imposed on prisoners without proper equipment, clothing, nourishment, or rest. Transit camps functioned as temporary holding facilities for Jews awaiting deportation. These camps were usually the last stop before deportations to a killing center. There were 1,830 forced labor and transit camps.
The Nazi regime promoted a liberal code of conduct regarding sexual matters and was sympathetic to women who bore children out of wedlock.[382] Promiscuity increased as the war progressed, with unmarried soldiers often intimately involved with several women simultaneously. Soldier's wives were frequently involved in extramarital relationships. Sex was sometimes used as a commodity to obtain better work from a foreign labourer.[383] Pamphlets enjoined German women to avoid sexual relations with foreign workers as a danger to their blood.[384]
When the stock market in the United States crashed on 24 October 1929, the effect in Germany was dire.[11] Millions were thrown out of work and several major banks collapsed. Hitler and the NSDAP prepared to take advantage of the emergency to gain support for their party. They promised to strengthen the economy and provide jobs.[12] Many voters decided the NSDAP was capable of restoring order, quelling civil unrest, and improving Germany's international reputation. After the federal election of 1932, the NSDAP was the largest party in the Reichstag, holding 230 seats with 37.4 percent of the popular vote.[13]
Via the offices of the Sicherheitsdienst, the German security police, prison in Amsterdam, and the Westerbork transit camp, the people from the Secret Annex were put on transport to the Auschwitz-Birkenau concentration and extermination camp. The train journey took three days, during which Anne and over a thousand others were packed closely together in cattle wagons. There was little food and water and only a barrel for a toilet. 
Use of the word "concentration" came from the idea of confining people in one place because they belong to a group that is considered undesirable in some way. The term itself originated in 1897 when the "reconcentration camps" were set up in Cuba by General Valeriano Weyler. In the past, the U.S. government had used concentration camps against Native Americans and the British had also used them during the Second Boer War. Between 1904 and 1908, the Schutztruppe of the Imperial German Army operated concentration camps in German South-West Africa (now Namibia) as part of its genocide of the Herero and Namaqua peoples. The Shark Island Concentration Camp in Lüderitz was the largest camp and the one with the harshest conditions.