As the government and military began to collapse within Germany, Nazi officials in both Germany and occupied Poland began to think about their endgame. In November 1944, Heinrich Himmler, head of the SS and one of the architects of the Holocaust, issued an abruptorder to destroy the gas chambers at Auschwitz-Birkenau, the largest of Auschwitz’s three main camps. Historians disagree on why he issued the command, which was in direct opposition to a previous order by Adolf Hitler to destroy the remaining Jews in Europe.
The resistance sent out the first oral message about Auschwitz with Dr. Aleksander Wielkopolski, a Polish engineer who was released in October 1940.[202] The following month the Polish underground in Warsaw prepared a report on the basis of that information, The camp in Auschwitz, part of which was published in London in May 1941 in a booklet, The German Occupation of Poland, by the Polish Ministry of Foreign Affairs. The report said of the Jews in the camp that "scarcely any of them came out alive". According to Fleming, the booklet was "widely circulated amongst British officials". The Polish Fortnightly Review based a story on it, writing that "three crematorium furnaces were insufficient to cope with the bodies being cremated", as did The Scotsman on 8 January 1942, the only British news organization to do so.[203]

Fleeing Germans also torched a couple of dozen of the wooden barracks at Birkenau. Many of the camp buildings that were left largely intact were later taken apart by Poles desperate for shelter. Birkenau remains the starkest, most tangible, most haunting reminder of what Dwork says was the “greatest catastrophe Western civilization permitted, and endured.”

Today, at the beginning of the twenty-first century, the diary has not lost its power: in 2002, Habimah staged the play for the sixth time in Israel, an average of once per decade. In March 2002, Carol Ann Lee’s biography of Otto Frank, The Hidden Life of Otto Frank, had the Netherlands in an uproar. She places responsibility for the discovery of the attic’s inhabitants on Anton (Tony) Ahlers, a sworn antisemite and a member of the Dutch Nazi party who systematically informed on Jews. Ahlers was Frank’s business partner and knew that his spice company had done business with the Wehrmacht at the beginning of the war. Frank evidently paid Ahlers hush money even before his family entered the attic. Afterwards, he paid him not to reveal to the Dutch government that he had done business with the Wehrmacht, and apparently continued to pay him off until his death in 1980. Following the public furor, which spread to the United States, The Netherlands State Institute for War Documentation, the main organization that researches Anne Frank’s legacy today, announced that it would investigate Lee’s claims and soon publish its findings. Lee’s biography turns Anne’s father, the man who influenced her more than anyone and won her total admiration, into a man of flesh and blood devoid of the saintly image that had previously clung to him. It also placed the issues of informing and collaboration in the Netherlands and in Europe back on the public agenda, along with the question of the relationship to the Jewish citizens of those countries and their fate. Once more, Anne’s image hovers over the controversy, with its dark eyes and penetrating gaze, its hopes for a new world and faith in humankind.
Another important figure in pre-Nazi völkisch thinking was Wilhelm Heinrich Riehl, whose work—Land und Leute (Land and People, written between 1857 and 1863)—collectively tied the organic German Volk to its native landscape and nature, a pairing which stood in stark opposition to the mechanical and materialistic civilization which was then developing as a result of industrialization.[63] Geographers Friedrich Ratzel and Karl Haushofer borrowed from Riehl's work as did Nazi ideologues Alfred Rosenberg and Paul Schultze-Naumburg, both of whom employed some of Riehl's philosophy in arguing that "each nation-state was an organism that required a particular living space in order to survive".[64] Riehl's influence is overtly discernible in the Blut und Boden (Blood and Soil) philosophy introduced by Oswald Spengler, which the Nazi agriculturalist Walther Darré and other prominent Nazis adopted.[65][66]

Then, on January 27, 1945, the Red Army reached the camp. Inside, they found prisoners covered in excrement and starving to death, children who had been used for medical experiments, and other shocking evidence of the Nazis’ crimes. At Birkenau, the guards had failed to destroy some of the storerooms where prisoners’ stolen belongings were stored before being transported back to the Reich. Among the remainingitems were 7.7 tons of human hair, 370,000 men’s suits and 837,000 women’s coats and dresses.

Special “political units on alert” (Politische Bereitschaften) originally guarded the SS concentration camps. They were renamed “SS Guard Units” (SS-Wachverbände) in 1935 and “SS Death's-Head Units” (SS-Totenkopfverbände) in April 1936. One SS Death's-Head Unit was assigned to each concentration camp. After 1936, the camp administration, including the commandant, was also a part of the SS Death's-Head Unit.

The Nazis claimed that communism was dangerous to the well-being of nations because of its intention to dissolve private property, its support of class conflict, its aggression against the middle class, its hostility towards small business and its atheism.[246] Nazism rejected class conflict-based socialism and economic egalitarianism, favouring instead a stratified economy with social classes based on merit and talent, retaining private property and the creation of national solidarity that transcends class distinction.[247] Historians Ian Kershaw and Joachim Fest argue that in post–World War I Germany, the Nazis were one of many nationalist and fascist political parties contending for the leadership of Germany's anti-communist movement.
An older use of Nazi for national-sozial is attested in German from 1903, but EWdS does not think it contributed to the word as applied to Hitler and his followers. The NSDAP for a time attempted to adopt the Nazi designation as what the Germans call a "despite-word," but they gave this up, and the NSDAP is said to have generally avoided the term. Before 1930, party members had been called in English National Socialists, which dates from 1923. The use of Nazi Germany, Nazi regime, etc., was popularized by German exiles abroad. From them, it spread into other languages, and eventually was brought back to Germany, after the war. In the USSR, the terms national socialist and Nazi were said to have been forbidden after 1932, presumably to avoid any taint to the good word socialist. Soviet literature refers to fascists.
By the end of the war, the number of people who had died in the concentration camps, from all causes—starvation, sickness, exhaustion, beating, shooting, gassing—was more than eight hundred thousand. The figure does not include the hundreds of thousands of Jews gassed on arrival at Auschwitz. If the K.L. were indeed a battlefront, as the Death’s-Head S.S. liked to believe, the deaths, in the course of twelve years, roughly equalled the casualties sustained by the Axis during the Battle of Stalingrad, among the deadliest actual engagements of the war. But in the camps the Nazis fought against helpless enemies. Considered as prisons, too, the K.L. were paradoxical: it was impossible to correct or rehabilitate people whose very nature, according to Nazi propaganda, was criminal or sick. And as economic institutions they were utterly counterproductive, wasting huge numbers of lives even as the need for workers in Germany became more and more acute.
In 2018 the Polish government passed an amendment to its Act on the Institute of National Remembrance, making it a criminal offence to make false suggestions of Polish complicity in the Holocaust, which would include referring to Auschwitz and other camps as "Polish death camps".[304] After discussions with Israel's prime minister, amid international concern that the law would stifle research, the Polish government adjusted the amendment so that anyone falsely accusing Poland of complicity would be guilty only of a civil offence.[305]
Notions of white supremacy and Aryan racial superiority were combined in the 19th century, with white supremacists maintaining the belief that certain groups of white people were members of an Aryan "master race" that is superior to other races and particularly superior to the Semitic race, which they associated with "cultural sterility".[80] Arthur de Gobineau, a French racial theorist and aristocrat, blamed the fall of the ancien régime in France on racial degeneracy caused by racial intermixing, which he argued had destroyed the purity of the Aryan race, a term which he only reserved for Germanic people.[81][82] Gobineau's theories, which attracted a strong following in Germany,[81] emphasized the existence of an irreconcilable polarity between Aryan (Germanic) and Jewish cultures.[80]
"Dr. Mengele had always been more interested in Tibi. I am not sure why - perhaps because he was the older twin. Mengele made several operations on Tibi. One surgery on his spine left my brother paralyzed. He could not walk anymore. Then they took out his sexual organs. After the fourth operation, I did not see Tibi anymore. I cannot tell you how I felt. It is impossible to put into words how I felt. They had taken away my father, my mother, my two older brothers - and now, my twin ..."
These gassing facilities soon proved inadequate for the task of murdering the large numbers of Jewish deportees being sent to Auschwitz. Between March and June 1943, four large crematoria were built within Auschwitz-Birkenau, each with a gas chamber, a disrobing area, and crematory ovens. Gassings ceased at Bunkers I and II when Crematoria II through V began operating, although Bunker II was put back into operation during the deportation of Hungary’s Jews in 1944. Gassing of newly arrived transports ceased at Auschwitz by early November 1944.
After 1942, many small subcamps were set up near factories to provide forced labor. IG Farben established a synthetic rubber plant in 1942 at Monowitz concentration camp (Auschwitz III); other camps were set up next to airplane factories, coal mines and rocket propellant plants. Conditions were brutal and prisoners were often sent to the gas chambers or killed on site if they did not work quickly enough.