Sometimes the mere presence of German troops in the vicinity was sufficient to spur a massacre. One example is what happened in the Polish village of Jedwabne, where neighbours murdered their Jewish neighbours. For years the massacre was blamed on the Germans, though many Poles likely knew that the local population had turned against its own Jews. In the Baltics, where the Germans were greeted as liberators by some segments of the population, the lure of political independence and the desire to erase any collaboration with the previous Soviet occupiers led nationalist bands to murder local Jews.
No matter the ethical background of a student, the lesson that true good and true evil exist in the world is invaluable. This can be a difficult concept to convey without controversy. The concept of what is good and what is evil is not constant. This changes from person to person based on belief. There is, however, an area of absolutes that ought to be discussed so that students can know where and when to take a stand and for what cause. There are a few examples from history that can be used to have this discussion productively. One such example is the Nazi Holocaust. This terrifying case has absolutes that do not change. Thus persons and events from World War II can be used as examples of good and evil, and therefore can lead to productive discussions of ethics. A very good text to use in order to encourage this discussion is Schindler’s List by Thomas Keneally.
Immediately after liberation, West European Jews who survived the Holocaust generally returned to their countries of origin. Holocaust survivors who tried to return to their homes in Eastern Europe faced many more difficulties. The Nazi destruction in the East had been all-encompassing. Many survivors, particularly in Eastern Europe, continued to encounter antisemitism when they returned to their communities. In some places survivors who had returned home met with violent hostility. In Kielce, 42 Jews who had survived the Holocaust were killed by local Poles in a pogrom on July 4, 1946.
The whole of Israel throughout the world is uniting to declare an economic and financial war on Germany. The appearance of the Swastika as the symbol of the new Germany has revived the old war symbol of Judas to new life. Fourteen million Jews scattered over the entire world are tight to each other as if one man, in order to declare war against the German persecutors of their fellow believers. The Jewish wholesaler will quit his house, the banker his stock exchange, the merchant his business, and the beggar his humble hut, in order to join the holy war against Hitler's people.

The first Jewish prisoners came as known political opponents of the Nazis. At Dachau, as elsewhere, they received even worse treatment than the other prisoners. Gradually, more and more groups were arrested and brought to Dachau, Jehovah’s Witness, Gypsies, who like the Jews were classified as racially inferior, Clergymen who resisted the Nazi coercion of the churches and Homosexuals and many others who had been denounced for making critical remarks against the Nazi regime.

During the last months before the liberation, the prisoners at Dachau had to live under extremely inhuman conditions, which even they would not have been able to imagine. The gigantic transports continually arriving from other Nazi camps evacuated in the face of the advancing Allied forces, brought human beings who were, for the most part, reduced to skeletons and exhausted to the point of death.
After a day’s journey, we arrived at Bergen-Belsen. This concentration camp was hopelessly overcrowded and we were not accepted. The right hand no longer knew what the left hand was doing, so we were sent to an adjoining Wehrmacht compound. As the soldiers of the Wehrmacht marched out, we moved in. The confusion was unbelievable; this time it was disorder with German perfection. We were moved into clean barracks, equipped for human beings with excellent bathrooms and clean beds stacked three on top of each other. After all we had experienced in the preceding year, this was sheer luxury. There was no mention of the usual camp rituals, no roll calls and no work, but also no food.
Only in 2000 did the Federal Government of Germany begin to financially support the memorial. Co-financed by the state of Lower Saxony, a complete redesign was planned which was intended to be more in line with contemporary thought on exhibition design.[32] On April 15, 2005, there was a ceremony, commemorating the 60th anniversary of the liberation and many ex-prisoners and ex-liberating troops attended.[33][34] In October 2007, the redesigned memorial site was opened, including a large new Documentation Centre and permanent exhibition on the edge of the newly redefined camp, whose structure and layout can now be traced. Since 2009, the memorial has been receiving funding from the Federal government on an ongoing basis.[35]
During the era of the Holocaust, German authorities also targeted other groups because of their perceived racial and biological inferiority: Roma (Gypsies), people with disabilities, and some of the Slavic peoples (Poles, Russians, and others). Other groups were persecuted on political, ideological, and behavioral grounds, among them Communists, Socialists, Jehovah's Witnesses, and homosexuals.

Below are figures for the number of Jews murdered in each country that came under German domination. They are estimates, as are all figures relating to Holocaust victims. The numbers given here for Czechoslovakia, Hungary and Romania are based on their territorial borders before the 1938 Munich agreement. The total number of six million Jews murdered during the Holocaust, which emerged from the Nuremberg trials, is also an estimate. Numbers have ranged between five and seven million killed.
^ 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."

From the evidence it became clear how this was done. After a sleepless night – for sleep in the huts was impossible – the men were driven to a hut where the dead were collected. They were instructed by what the witness called the “language of blows, which was universal.” Their duty was to take strips of blankets, tie them to a corpse, and, four men to a corpse, drag it across the main road of the camp along dusty paths to the burial pit. In the midst of this work, which lasted three days without sleep, food, or water till the British arrived, one Hungarian guard at the exit from the hut containing the bodies began shooting all prisoners if they did not come out dragging a body at the double. During the last three days the Hungarian guards were almost continuously shooting at prisoners, sometimes single shots, sometimes fusillades.
The economic strains of the Great Depression led some in the German medical establishment to advocate murder (euphemistically called "euthanasia") of the "incurable" mentally and physically disabled as a cost-saving measure to free up funds for the curable.[66] By the time the National Socialist German Workers' Party, or Nazi Party,[j] came to power in 1933, there was already a tendency to seek to save the racially "valuable", while ridding society of the racially "undesirable".[68] The party had originated in 1920[67] as an offshoot of the völkisch movement, and it adopted that movement's antisemitism.[69] Early antisemites in the party included Dietrich Eckart, publisher of the Völkischer Beobachter, the party's newspaper, and Alfred Rosenberg, who wrote antisemitic articles for it in the 1920s. Rosenberg's vision of a secretive Jewish conspiracy ruling the world would influence Hitler's views of Jews by making them the driving force behind communism.[70] The origin and first expression of Hitler's antisemitism remain a matter of debate.[71] Central to his world view was the idea of expansion and lebensraum (living space) for Germany. Open about his hatred of Jews, he subscribed to the common antisemitic stereotypes.[72] From the early 1920s onwards, he compared the Jews to germs and said they should be dealt with in the same way. He viewed Marxism as a Jewish doctrine, said he was fighting against "Jewish Marxism", and believed that Jews had created communism as part of a conspiracy to destroy Germany.[73]

A training center for SS concentration camp guards, Dachau’s organization and routine became the model for all Nazi concentration camps. A new crematorium area was constructed in 1942 to dispose of the increasing number of casualties of typhoid, starvation, and executions. Dachau’s prisoners were used as subjects of medical experiments and hundreds of prisoners died or were permanently crippled as a result of these experiments.

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.