Some former inmates and a few historians have claimed that Jews were put to death in gas chambers at Bergen-Belsen. For example, an "authoritative" work published shortly after the end of the war, A History of World War II, informed readers: "In Belsen, [Commandant] Kramer kept an orchestra to play him Viennese music while he watched children torn from their mothers to be burned alive. Gas chambers disposed of thousands of persons daily." /31
Many of the soldiers who first entered the camp were desperate to try and alleviate the prisoners' starvation by giving them army rations. This first intake of food was fatal for many prisoners, who were too weak to digest it. One of the British Army's most important tasks, as Major Dick Williams explains, was to find a safer and more appropriate way of providing food for the starving prisoners.

With this police infrastructure in place, opponents of the Nazis were terrorized, beaten, or sent to one of the concentration camps the Germans built to incarcerate them. Dachau, just outside of Munich, was the first such camp built for political prisoners. Dachau's purpose changed over time and eventually became another brutal concentration camp for Jews.
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.
The photo above shows some of the members of the International Committee of Dachau. The second man from the left, who is wearing a cardigan sweater and a coat, is Albert Guérisse, a British SOE agent from Belgium, who was hiding his identity by using the name Patrick O'Leary. He was one of five British SOE agents who had survived the Nazi concentration camps at Mauthausen in Austria and Natzweiler in Alsace before being transferred to Dachau. Guérisse greeted Lt. William P. Walsh and 1st Lt. Jack Bushyhead of the 45th Infantry Division and took them on a tour of the camp, showing them the gas chamber and the ovens in the crematorium.
Prisoners continued to die, in spite of the medical treatment provided by the Red Cross and the British Army. Nine thousand died in the first two weeks after the British arrived, and another 4000 died in May. The bodies were thrown into unmarked mass graves, even though the identities of these prisoners were known. Today none of the mass graves at Bergen-Belsen has a stone with the names of those who are buried there.
The AFPU recruited from the ranks of the British Army. Many of the photographers and cameramen present at the liberation of Bergen-Belsen were tough, hardened by their own experiences of combat. Yet they were deeply shocked by what they witnessed at the camp. AFPU cameraman and photographer Sergeant Mike Lewis came from a Jewish family and describes how witnessing the camp's liberation made real for him the stories of persecution he had been told by his parents. He also reflects on his own reaction to what he had witnessed.

The major reasons for the state of Belsen were disease, gross overcrowding by central authority, lack of law and order within the huts, and inadequate supplies of food, water and drugs. In trying to assess the causes of the conditions found in Belsen one must be alerted to the tremendous visual display, ripe for purposes of propaganda, that masses of starved corpses presented.

New arrivals at Dachau were never told how long they would be imprisoned, a factor that weakened their morale and left them more vulnerable to the remolding that would follow. Often, their journey to Dachau marked the first time they had ever been arrested or involved with police. Many had been sent there by the Gestapo upon vague accusations or denunciations by persons who simply disliked them or who wanted to settle an old score. Some were even arrested on suspicion they might commit a crime in the future.

It is frequently stated that such cruelties as are outlined above are due to certain deficiencies in the character of the German people. I am strongly opposed to this view, having observed that even among this selected group of Special Police, only about five percent take an active part in, or favor, the brutalities inflicted upon the prisoners. The atrocities committed are the work of a few criminal types who are strongly backed by their superiors. This substantiates the statement made by Dimitroff during the Reichstag trial, that “neither the Bulgarian nor any other people is barbaric, but fascism is barbaric wherever it appears.” The happenings in Dachau were not the uncontrolled actions of minor officials. The camp was continually visited by leading members of the Nazi party and government, among them being Heinrich Himmler, Commander of the Special Police; General Von Epp; Bavarian Minister of the Interior Wagner and others. 
In 1980, Australian author Thomas Keneally by chance visited Pfefferberg's luggage store in Beverly Hills while en route home from a film festival in Europe. Pfefferberg took the opportunity to tell Keneally the story of Oskar Schindler. He gave him copies of some materials he had on file, and Keneally soon decided to make a fictionalised treatment of the story. After extensive research and interviews with surviving Schindlerjuden, his 1982 historical novel Schindler's Ark (published in the United States as Schindler's List) was the result.[94]
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.

When the British and Canadians advanced on Bergen-Belsen in 1945, the German army negotiated a truce and exclusion zone around the camp to prevent the spread of typhus.[16] On April 11, 1945 Heinrich Himmler (the Reichsführer SS) agreed to have the camp handed over without a fight. SS guards ordered prisoners to bury some of the dead. The next day, Wehrmacht representatives approached the British and were brought to VIII Corps. At around 1 a.m. on April 13, an agreement was signed, designating an area of 48 square kilometers (19 square miles) around the camp as a neutral zone. Most of the SS were allowed to leave. Only a small number of SS men and women, including the camp commandant Kramer, remained to "uphold order inside the camp". The outside was guarded by Hungarian and regular German troops. Due to heavy fighting near Winsen and Walle, the British were unable to reach Bergen-Belsen on April 14, as originally planned. The camp was liberated on the afternoon of April 15, 1945.[10]:253 The first two to reach the camp were a British Special Air Service officer, Lieutenant John Randall, and his jeep driver, who were on a reconnaissance mission and discovered the camp by chance.[17]

Shortly after the outbreak of war in September 1939, thirty-one-year-old Schindler showed up in occupied Krakow. The ancient city, home to some 60,000 Jews and seat of the German occupation administration, the Generalgouvernement, proved highly attractive to German entrepreneurs, hoping to capitalize on the misfortunes of the subjugated country and make a fortune. Naturally cunning and none too scrupulous, Schindler appeared at first to thrive in these surroundings.  In October 1939, he took over a run-down enamelware factory that had previously belonged to a Jew.  He cleverly maneuvered his steps- acting upon the shrewd commercial advice of a Polish-Jewish accountant, Isaak Stern - and began to build himself a fortune. The small concern in Zablocie outside Krakow, which started producing kitchenware for the German army, began to grow by leaps and bounds. After only three months it already had a task-force of some 250 Polish workers, among them seven Jews. By the end of 1942, it had expanded into a mammoth enamel and ammunitions production plant, occupying some 45,000 square meters and employing almost 800 men and women. Of these, 370 were Jews from the Krakow ghetto, which the Germans had established after they entered the city.
Many healthy, young strong Jews were not killed immediately. The Germans' war effort and the “Final Solution” required a great deal of manpower, so the Germans reserved large pools of Jews for slave labor. These people, imprisoned in concentration and labor camps, were forced to work in German munitions and other factories, such as I.G. Farben and Krupps, and wherever the Nazis needed laborers. They were worked from dawn until dark without adequate food and shelter. Thousands perished, literally worked to death by the Germans and their collaborators.
Britain's attitude to Jewish refugees from Nazi-controlled areas was strongly influenced by its role as the mandatory power in Palestine, where it had to mediate between Jewish and Arab interests. In December 1941, the Struma, a ship carrying 769 Jewish refugees, left the Romanian port of Constantsa hoping to reach Palestine. Towed into Istanbul harbour when its engines failed, it became the subject of diplomatic discussions between Britain and Turkey. Britain's chief concern was to discourage what it regarded as an undesirable traffic, and it proposed that the ship be returned to Romania. After ten weeks of wrangling the Struma was towed out to sea, its engines still disabled, where it was sunk by a Soviet submarine. There was one survivor.
From this moment on, the Nazi regime adopted hundreds of laws restricting the rights and liberties of the Jewish people. Jews were expelled from the civil service and barred from entering particular professions, stripped of their citizenship, and forbidden from intermarrying or even having a relationship with anyone of “German or German-related blood”.
The Roma refer to the genocide of the Romani people as the Pořajmos.[414] Because they are traditionally a private people with a culture based on oral history, less is known about their experience than that of any other group.[415] Bauer writes that this can be attributed to the Roma's distrust and suspicion, and to their humiliation because some of the taboos in Romani culture regarding hygiene and sex were violated at Auschwitz.[416] In May 1942, the Roma were placed under similar laws to the Jews. On 16 December 1942, Himmler issued a decree that "Gypsy Mischlinge [mixed breeds], Roma Gypsies, and members of the clans of Balkan origins who are not of German blood" should be sent to Auschwitz, unless they had served in the Wehrmacht.[417] He adjusted the order on 15 November 1943; in the occupied Soviet areas, "sedentary Gypsies and part-Gypsies are to be treated as citizens of the country. Nomadic Gypsies and part-Gypsies are to be placed on the same level as Jews and placed in concentration camps."[418] Bauer argues that this adjustment reflected Nazi ideology that the Roma, originally an Aryan population, had been "spoiled" by non-Romani blood.[419]
The camp was not really inefficient before you [British and American forces] crossed the Rhine. There was running water, regular meals of a kind -- I had to accept what food I was given for the camp and distribute it the best way I could. But then they suddenly began to send me trainloads of new prisoners from all over Germany. It was impossible to cope with them. I appealed for more staff, more food. I was told that this was impossible. I had to carry on with what I had.

Around 50,000 German gay men were jailed between 1933 and 1945, and 5,000–15,000 are estimated to have been sent to concentration camps. It is not known how many died during the Holocaust.[413][449] James Steakley writes that what mattered in Germany was criminal intent or character, rather than acts, and the "gesundes Volksempfinden" ("healthy sensibility of the people") became the guiding legal principle.[450] In 1936, Himmler created the Reich Central Office for the Combating of Homosexuality and Abortion.[451] The Gestapo raided gay bars, tracked individuals using the address books of those they arrested, used the subscription lists of gay magazines to find others, and encouraged people to report suspected homosexual behavior and to scrutinize the behavior of their neighbors.[450] Lesbians were left relatively unaffected;[413] the Nazis saw them as "asocials", rather than sexual deviants.[452] Gay men convicted between 1933 and 1944 were sent to camps for "rehabilitation", where they were identified by pink triangles.[450] Hundreds were castrated, sometimes "voluntarily" to avoid criminal sentences.[453] Steakley writes that the full extent of gay suffering was slow to emerge after the war. Many victims kept their stories to themselves because homosexuality remained criminalized in postwar Germany.[450]

Using gas vans, Chełmno had its roots in the Aktion T4 euthanasia program.[273] Majdanek began as a POW camp, but in August 1942 it had gas chambers installed.[274] A few other camps are occasionally named as extermination camps, but there is no scholarly agreement on the additional camps; commonly mentioned are Mauthausen in Austria[275] and Stutthof.[276] There may also have been plans for camps at Mogilev and Lvov.[277]

British troops guard Alex Pickowski, Camp Commandant of Dechau concentration camp  © The discovery of Belsen brought home the shocking truth about Nazi atrocities, but the facts had been known for some time. As early as the summer of 1941, British signals intelligence had intercepted and decoded radio messages from German police units co-operating with the Einsatzgruppen, and details of the killings of Jews were included in the monthly summaries that were sent to Churchill. Churchill responded with a speech on August 24 1941 in which he called the massacres 'a crime without a name' but erroneously identified the victims as 'Russian patriots defending their native soil'. Otherwise, these facts were not made public.

Until late 1944 conditions were generally better than in other concentration camps. Marika Frank Abrams, a Jewish woman from Hungary, was transferred from Auschwitz in 1944. Years later she recalled her arrival at Belsen: "... We were each given two blankets and a dish. There was running water and latrines. We were given food that was edible and didn't have to stand for hours to be counted. The conditions were so superior to Auschwitz we felt we were practically in a sanitarium." /3
State of Health. The incidence of disease is very high here in proportion to the number of detainees. When you interviewed me on Dec. 1, 1944, at Oranienburg, you told me that Bergen-Belsen was to serve as a sick camp for all concentration camps in north Germany. The number of sick has greatly increased, particularly on account of the transports of detainees that have arrived from the East in recent times -- these transports have sometimes spent eight or fourteen days in open trucks ...
I was surprised to find records, going back for two or three years, of large quantities of food cooked daily for distribution. I became convinced, contrary to popular opinion, that there had never been a policy of deliberate starvation. This was confirmed by the large numbers of well-fed inmates. Why then were so many people suffering from malnutrition?... The major reasons for the state of Belsen were disease, gross overcrowding by central authority, lack of law and order within the huts, and inadequate supplies of food, water and drugs.
To the Nazi regime, there would have been no doubt that a war against Bolshevism was implicitly a war against the Jewish population of the Soviet Union. A division of Hitler’s SS known as the Einsatzgruppen traveled behind the German army and acted as death squads, exterminating civilian populations in the most efficient way possible. During the early part of Operation Barbarossa these were frequently people who had fled the Nazi’s earlier invasion of Poland.
Over the next days the surviving prisoners were deloused and moved to a nearby German Panzer army camp, which became the Bergen-Belsen DP (displaced persons) camp. Over a period of four weeks, almost 29,000 of the survivors were moved there. Before the handover, the SS had managed to destroy the camp's administrative files, thereby eradicating most written evidence.[21]