In April 1940, Rudolph Höss, who become the first commandant, identified the Silesian town of Oswiecim as a possible site for a concentration camp. The function of the camp was initially to intimidate Poles and prevent resistance to German rule. It was also perceived as a cornerstone of the policy to re-colonize Upper Silesia, which had once been a German region, with 'pure Aryans'. On April 27th, Himmler ordered construction of the camp.
The Nazi Party emerged from the German nationalist, racist and populist Freikorps paramilitary culture, which fought against the communist uprisings in post-World War I Germany.[6] The party was created to draw workers away from communism and into völkisch nationalism.[7] Initially, Nazi political strategy focused on anti-big business, anti-bourgeois, and anti-capitalist rhetoric, although this was later downplayed to gain the support of business leaders, and in the 1930s the party's main focus shifted to anti-Semitic and anti-Marxist themes.[8]
The first “bunker,” with two sealed rooms, operated from January 1942 to the end of that year. The second, with four air tight rooms, became redundant in the spring of 1943, but remained standing and was used again in the autumn of 1944 when extra “capacity” was needed for the murder of Hungarian Jews and the liquidation of the ghettos. The second measured about 1.134 square feet. The victims murdered in the “bunkers” were first obliged to undress in temporary wooden barracks erected nearby. Their bodies were taken out of the gas chambers and pushed to pits where they were burned in the open.

The Nazis’ goal wasn’t only to destroy evidence of the camp: They had plans to force the prisoners to serve as slave laborers for the Reich. Some prisoners were stuffed into train cars to complete their journey to Germany; others escaped into the sub-zero temperatures. Of those forced to walk, some died along the way, though it remains unclear how many were killed over the course of the marches.

Slovak rabbi Michael Dov Weissmandl was the first to suggest, in May 1944, that the Allies bomb the rails leading to Auschwitz.[225] At one point British Prime Minister Winston Churchill ordered that such a plan be prepared, but he was told that precision bombing the camp to free the prisoners or disrupt the railway was not technically feasible.[226][not in citation given] In 1978, historian David Wyman published an essay in Commentary entitled "Why Auschwitz Was Never Bombed", arguing that the United States Army Air Forces had the capability to attack Auschwitz and should have done so; he expanded his arguments in his book The Abandonment of the Jews: America and the Holocaust 1941–1945 (1984). Wyman argued that, since the IG Farben plant at Auschwitz III had been bombed three times between August and December 1944 by the US Fifteenth Air Force in Italy, it would have been feasible for the other camps or railway lines to be bombed too. Bernard Wasserstein's Britain and the Jews of Europe (1979) and Martin Gilbert's Auschwitz and the Allies (1981) raised similar questions about British inaction.[227] Since the 1990s, other historians have argued that Allied bombing accuracy was not sufficient for Wyman's proposed attack, and that counterfactual history is an inherently problematic endeavor.[228]
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]
That month, Himmler ordered the evacuation of all camps, charging camp commanders with "making sure that not a single prisoner from the concentration camps falls alive into the hands of the enemy".[240] Beginning on 17 January, 56,000–58,000 Auschwitz detainees—over 20,000 from Auschwitz I and II, over 30,000 from subcamps, and two-thirds of them Jews—were evacuated under guard, largely on foot, in severe winter conditions, heading west.[241][242] Around 2,200 were evacuated by rail from two subcamps; fewer than 9,000 were left behind, deemed too sick to move.[243] During the marches, camp staff shot anyone too sick or exhausted to continue, or anyone stopping to urinate or tie a shoelace. SS officers walked behind the marchers killing anyone lagging behind who had not already been shot.[235] Peter Longerich estimates that a quarter of the detainees were thus killed.[236] Those who managed to walk to Wodzisław Śląski and Gliwice were sent on open freight cars, without food, to concentration camps in Germany: Bergen-Belsen, Buchenwald, Dachau, Flossenburg, Gross-Rosen, Mauthausen, Dora-Mittelbau, Ravensbruck, and Sachsenhausen.[244]
Spengler's definition of socialism did not advocate a change to property relations.[110] He denounced Marxism for seeking to train the proletariat to "expropriate the expropriator", the capitalist and then to let them live a life of leisure on this expropriation.[115] He claimed that "Marxism is the capitalism of the working class" and not true socialism.[115] According to Spengler, true socialism would be in the form of corporatism, stating that "local corporate bodies organised according to the importance of each occupation to the people as a whole; higher representation in stages up to a supreme council of the state; mandates revocable at any time; no organised parties, no professional politicians, no periodic elections".[116]
In spite of their rhetoric condemning big business prior to their rise to power, the Nazis quickly entered into a partnership with German business from as early as February 1933. That month, after being appointed Chancellor but before gaining dictatorial powers, Hitler made a personal appeal to German business leaders to help fund the Nazi Party for the crucial months that were to follow. He argued that they should support him in establishing a dictatorship because "private enterprise cannot be maintained in the age of democracy" and because democracy would allegedly lead to communism.[56] He promised to destroy the German left and the trade unions, without any mention of anti-Jewish policies or foreign conquests.[225] In the following weeks, the Nazi Party received contributions from seventeen different business groups, with the largest coming from IG Farben and Deutsche Bank.[225] Historian Adam Tooze writes that the leaders of German business were therefore "willing partners in the destruction of political pluralism in Germany."[54] In exchange, owners and managers of German businesses were granted unprecedented powers to control their workforce, collective bargaining was abolished and wages were frozen at a relatively low level.[226] Business profits also rose very rapidly, as did corporate investment.[227] In addition, the Nazis privatised public properties and public services, but at the same time they increased economic state control through regulations.[228] Hitler believed that private ownership was useful in that it encouraged creative competition and technical innovation, but insisted that it had to conform to national interests and be "productive" rather than "parasitical".[229] Private property rights were conditional upon following the economic priorities set by the Nazi leadership, with high profits as a reward for firms who followed them and the threat of nationalization being used against those who did not.[230] Under Nazi economics, free competition and self-regulating markets diminished, but Hitler's social Darwinist beliefs made him retain business competition and private property as economic engines.[231][232]
As the Russians closed in on Auschwitz, the Germans became desperate, destroying as much evidence of war crimes as they could, including records and property seized from prisoners, and forcing as many prisoners as they could on what became death marches. The day before the Russian Army liberated Auschwitz, Edith died there. On January 27 Otto was liberated and taken to Odessa and then France before being allowed to return to Amsterdam in June 1945.

Höss was succeeded as Auschwitz commandant in November 1943 by SS Obersturmbannführer Arthur Liebehenschel, who served until 15 May 1944. SS Sturmbannführer Richard Baer became commandant of Auschwitz I on 11 May 1944, and SS Obersturmbannführer Fritz Hartjenstein of Auschwitz II from 22 November 1943, followed by SS Obersturmbannführer Josef Kramer from 15 May 1944 until the camp's liquidation in January 1945. Heinrich Schwarz was commandant of Auschwitz III from the point at which it became an autonomous camp in November 1943 until its liquidation.[83]

Nazism emphasized German nationalism, including both irredentism and expansionism. Nazism held racial theories based upon a belief in the existence of an Aryan master race that was superior to all other races. The Nazis emphasised the existence of racial conflict between the Aryan race and others—particularly Jews, whom the Nazis viewed as a mixed race that had infiltrated multiple societies and was responsible for exploitation and repression of the Aryan race. The Nazis also categorised Slavs as Untermensch (sub-human).[129]
During the 1920s, Hitler urged disparate Nazi factions to unite in opposition to Jewish Bolshevism.[251] Hitler asserted that the "three vices" of "Jewish Marxism" were democracy, pacifism and internationalism.[252] The Communist movement, the trade unions, the Social Democratic Party and the left-wing press were all considered to be Jewish-controlled and part of the "international Jewish conspiracy" to weaken the German nation by promoting internal disunity through class struggle.[53] The Nazis also believed that the Jews had instigated the Bolshevik revolution in Russia and that Communists had stabbed Germany in the back and caused it to lose the First World War.[253] They further argued that modern cultural trends of the 1920s (such as jazz music and cubist art) represented "cultural Bolshevism" and were part of a political assault aimed at the spiritual degeneration of the German Volk.[253] Joseph Goebbels published a pamphlet titled The Nazi-Sozi which gave brief points of how National Socialism differed from Marxism.[254] In 1930, Hitler said: "Our adopted term 'Socialist' has nothing to do with Marxist Socialism. Marxism is anti-property; true Socialism is not".[255]
On 26 June 1933, Himmler appointed Theodor Eicke commandant of Dachau, who in 1934 was also appointed the first Inspector of Concentration Camps (CCI). In addition, the remaining SA-run camps were taken over by the SS.[14][15][16] Dachau served as both a prototype and a model for the other Nazi concentration camps. Almost every community in Germany had members who were taken there. The newspapers continuously reported on "the removal of the enemies of the Reich to concentration camps" making the general population more aware of their presence. There were jingles warning as early as 1935: "Dear God, make me dumb, that I may not come to Dachau."[17]