The Nazis captured 5.75 million Soviet prisoners of war, more than they took from all the other Allied powers combined. Of these, they killed an estimated 3.3 million, with 2.8 million of them being killed between June 1941 and January 1942. Many POWs starved to death or resorted to cannibalism while being held in open-air pens at Auschwitz and elsewhere.
The conservators have an easy camaraderie, but sometimes their task can become too much to bear. “Working with shoes probably is one of the most difficult parts of working here,” Ms. Banas-Maciaszczyk said. Everyone here has emotional moments. For her, it was a day when she was cleaning a little girl’s wooden sandal. She could see the small footprint inside. “This is something hard to describe,” she said. From 1940 to 1945, between 150,000 and 200,000 children died here.
After the failure of the Beer Hall Putsch in 1923, and his subsequent trial and imprisonment, Hitler decided that the way for the Nazi Party to achieve power was not through insurrection, but through legal and quasi-legal means. This did not sit well with the brown-shirted stormtroopers of the SA, especially those in Berlin, who chafed under the restrictions that Hitler placed on them, and their subordination to the party. This resulted in the Stennes Revolt of 1930-31, after which Hitler made himself the Supreme Commander of the SA, and brought Ernst Röhm back to be their Chief of Staff and keep them in line. The quashing of the SA's revolutionary fervor convinced many businessmen and military leaders that the Nazis had put aside their insurrectionist past, and that Hitler could be a reliable partner 
To complete this mission, Hitler ordered the construction of death camps. Unlike concentration camps, which had existed in Germany since 1933 and were detention centers for Jews, political prisoners and other perceived enemies of the Nazi state, death camps existed for the sole purpose of killing Jews and other “undesirables,” in what became known as the Holocaust.
When the Nazis came to power in Germany, they quickly moved to suppress all real and potential opposition. The general public was intimidated by the arbitrary psychological terror that was used by the special courts (Sondergerichte). Especially during the first years of their existence when these courts "had a strong deterrent effect" against any form of political protest.