Oskar Schindler was a German who joined the Nazi Party for business reasons. Before the war, Schindler was known mainly for his interest in making quick money, drinking, and womanizing. Indeed, he saw the war at first as a chance to indulge in all three. Soon after the invasion of Poland, he came to the city of Kraków in search of business opportunities. With equal doses of bribery and charm, he managed to convince the Nazis that he was the right man to take over a failed cookware factory outside the city. He then proceeded to make a fortune turning out mess kits for German soldiers.

Eicke urged his SS men to treat all inmates as dangerous "Enemies of the State." He repeatedly lectured them: "There behind the barbed-wire lurks the enemy and he watches everything you do. He will try to help himself by using all your weaknesses. Don't leave yourself open in any way. Show these 'Enemies of the State' your teeth. Anyone who shows even the smallest sign of compassion for the 'Enemies of the State' must disappear from our ranks. I can only use hard men who are determined to do anything. We have no use for weaklings."

^ Nazi Science – The Dachau Hypothermia Experiments. Robert L. Berger, N Engl J Med 1990; 322:1435–1440 May 17, 1990 DOI: 10.1056/NEJM199005173222006. quote: "On analysis, the Dachau hypothermia study has all the ingredients of a scientific fraud, and rejection of the data on purely scientific grounds is inevitable. They cannot advance science or save human lives." ... "Future citations are inappropriate on scientific grounds."
Before reaching the concentration camp, the 45th Thunderbird Division had discovered an abandoned train, with no engine, on a branch railroad line which at that time ran from the Dachau station along Freisinger Street in the direction of the camp. Inside the 39 train cars were the corpses of prisoners who had been evacuated from Buchenwald on April 7, 1945 and, because of heavy bombing and strafing by Allied planes in the last days of the war, had not reached Dachau until three weeks later, two days before the American soldiers arrived.

The death marches served a dual purpose for the Nazis. On one hand, the Nazis intended for large numbers of Jewish prisoners to die on death marches. Indeed, about 250,000 prisoners, many of whom were Jews, died on death marches. On the other hand, the death marches were also an attempt to move concentration camp prisoners into Germany's borders, so that the Nazis could continue to exploit them for slave labor. Those who survived the death marches were imprisoned in concentration camps in Germany, such as Bergen Belsen, Ravensbrueck and Mauthausen.
^ Sven Felix Kellerhoff (21 October 2002). "Neue Museumskonzepte für die Konzentrationslager". WELT ONLINE (in German). Axel Springer AG. Retrieved 2 June 2008. . . . die SS-Kasernen neben dem KZ Dachau wurden zuerst (bis 1974) von der US-Armee bezogen. Seither nutzt sie die VI. Bayerische Bereitschaftspolizei. (. . . the SS barracks adjacent to the Dachau concentration camp were at first occupied by the US Army (until 1974). Since then they have been used by the Sixth Rapid Response Unit of the Bavarian Police.)
Young boys of the Hitler Youth were brought to see the dead bodies on the train. Mutilated corpses of SS guards, who had been killed by the Americans after discovering the train, were lying nearby. Before the corpses in the camp were finally given a decent burial, the stench could be smelled up to a mile away, according to the American liberators. When the bodies of the typhus victims were finally taken to the cemetery on a hill called Leitenberg for burial by the citizens of Dachau, the horse-drawn wagons had to be driven slowly though the town, on the orders of the American military, so that the town's people would be forced to confront the horror of what the Nazis had done.

Raphael Lemkin, a holocaust survivor who worked on the Nuremberg Trials, coined the term genocide and spent 4 years pushing for it to be added to international law. As Champetier de Ribes, the French Prosecutor at the Nuremberg Trials explained “This [was] a crime so monstrous, so undreamt of in history throughout the Christian era up to the birth of Hitlerism that the term ‘genocide’ has had to be coined to define it.” Ultimately, in 1948 The United Nations Convention on the Prevention and Punishment of Genocide was adopted, and it entered into force in 1951. The convention defined genocide in legal terms based on Lemkin’s work, and is the basis for genocide prevention efforts today.
An Inspector General report resulting from a US Army investigation conducted between 3 and 8 May 1945 and titled, "American Army Investigation of Alleged Mistreatment of German Guards at Dachau," found that 21 plus "a number" of presumed SS men were killed with others being wounded after their surrender had been accepted.[94][95] In addition, 25 to 50 SS guards were estimated to have been killed by the liberated prisoners.[96] Lee Miller visited the camp just after liberation, and photographed several guards who were killed by soldiers or prisoners.[97]
The gates of the camp had been locked again, and the liberators of the first hour, on their way again, were already far off, toward Munich, toward the south, pursuing their war. Guards had been placed on the other side of the barbed wire. No one was allowed out any more, Already, at the end of this first day, the Americans wondered what they would do with his rabble of lepers.
The Jews killed represented around one third of the world population of Jews,[398] and about two-thirds of European Jewry, based on an estimate of 9.7 million Jews in Europe at the start of the war.[399] Much of the uncertainty stems from the lack of a reliable figure for the number of Jews in Europe in 1939, numerous border changes that make avoiding double-counting of victims difficult, lack of accurate records from the perpetrators, and uncertainty about whether deaths occurring months after liberation, but caused by the persecution, should be counted.[392]
After 1942, the number of prisoners regularly held at the camp continued to exceed 12,000.[37] Dachau originally held Communists, leading Socialists and other “enemies of the state” in 1933, but over time the Nazis began to send German Jews to the camp. In the early years of imprisonment, Jews were offered permission to emigrate overseas if they “voluntarily” gave their property to enhance Hitler’s public treasury.[37] Once Austria was annexed and Czechoslovakia was defeated, the citizens of both countries became the next prisoners at Dachau. In 1940, Dachau became filled with Polish prisoners, who constituted the majority of the prisoner population until Dachau was officially liberated.[38]
Bergen-Belsen [ˈbɛʁɡn̩.bɛlsn̩], or Belsen, was a Nazi concentration camp in what is today Lower Saxony in northern Germany, southwest of the town of Bergen near Celle. Originally established as a prisoner of war camp,[1] in 1943, parts of it became a concentration camp. Initially this was an "exchange camp", where Jewish hostages were held with the intention of exchanging them for German prisoners of war held overseas.[2] The camp was later expanded to accommodate Jews from other concentration camps.