Racism and antisemitism were basic tenets of the NSDAP and the Nazi regime. Nazi Germany's racial policy was based on their belief in the existence of a superior master race. The Nazis postulated the existence of a racial conflict between the Aryan master race and inferior races, particularly Jews, who were viewed as a mixed race that had infiltrated society and were responsible for the exploitation and repression of the Aryan race.
Although the Germans destroyed parts of the camps before abandoning them in 1945, much of Auschwitz I and Auschwitz II (Birkenau) remained intact and were later converted into a museum and memorial. The site has been threatened by increased industrial activity in Oświęcim. In 1996, however, the Polish government joined with other organizations in a large-scale effort to ensure its preservation. Originally named Auschwitz Concentration Camp, the memorial was designated a UNESCO World Heritage site in 1979. It was renamed “Auschwitz-Birkenau. The Nazi German Concentration and Extermination Camp (1940–1945)” in 2007.
When Hitler became chancellor of Germany on January 1, 1933, conditions for Jews like the Franks and other so-called undesirables in Germany immediately deteriorated. By summer, freedom of speech and assembly were suspended for everyone in Germany, the Gestapo was formed, Jewish businesses—including medical and legal practices—were boycotted, and a law excluding non-Aryans from government removed Jews from government and teaching positions.
Influenced by the Völkisch movement, the regime was against cultural modernism and supported the development of an extensive military at the expense of intellectualism. Creativity and art were stifled, except where they could serve as propaganda media. The party used symbols such as the Blood Flag and rituals such as the Nazi Party rallies to foster unity and bolster the regime's popularity.
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. Alfred Rosenberg condemned Italian Fascism for being racially confused and having influences from philosemitism. Strasser criticised the policy of Führerprinzip as being created by Mussolini and considered its presence in Nazism as a foreign imported idea. 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.
Following Operation Barbarossa, the Soviet Union was also plundered. In 1943 alone, 9,000,000 tons of cereals, 2,000,000 tonnes (2,000,000 long tons; 2,200,000 short tons) of fodder, 3,000,000 tonnes (3,000,000 long tons; 3,300,000 short tons) of potatoes, and 662,000 tonnes (652,000 long tons; 730,000 short tons) of meats were sent back to Germany. During the course of the German occupation, some 12 million pigs and 13 million sheep were taken. The value of this plunder is estimated at 4 billion Reichsmarks. This relatively low number in comparison to the occupied nations of Western Europe can be attributed to the devastating fighting on the Eastern Front.
The Nazi Party Programme of 1920 guaranteed freedom for all religious denominations which were not hostile to the State and it also endorsed Positive Christianity in order to combat "the Jewish-materialist spirit". Positive Christianity was a modified version of Christianity which emphasized racial purity and nationalism. The Nazis were aided by theologians such as Ernst Bergmann. In his work Die 25 Thesen der Deutschreligion (Twenty-five Points of the German Religion), Bergmann held the view that the Old Testament of the Bible was inaccurate along with portions of the New Testament, claimed that Jesus was not a Jew but was instead of Aryan origin and he also claimed that Adolf Hitler was the new messiah.
Nazi Germany maintained concentration camps (German: Konzentrationslager, KZ or KL) throughout the territories it controlled before and during the Second World War. The first Nazi camps were erected in Germany in March 1933 immediately after Hitler became Chancellor and his Nazi Party was given control of the police by Reich Interior Minister Wilhelm Frick and Prussian Acting Interior Minister Hermann Göring. Used to hold and torture political opponents and union organizers, the camps initially held around 45,000 prisoners. In 1933–1939, before the onset of war, most prisoners consisted of German Communists, Socialists, Social Democrats, Roma, Jehovah's Witnesses, homosexuals, and persons accused of 'asocial' or socially 'deviant' behavior by the Germans.