The camp was originally designed for holding German and Austrian political prisoners and Jews, but in 1935 it began to be used also for ordinary criminals. Inside the camp there was a sharp division between the two groups of prisoners; those who were there for political reasons and therefore wore a red tag, and the criminals, who wore a green tag.[47] The political prisoners who were there because they disagreed with Nazi Party policies, or with Hitler, naturally did not consider themselves criminals. Dachau was used as the chief camp for Christian (mainly Catholic) clergy who were imprisoned for not conforming with the Nazi Party line.[citation needed]
As we moved down along the west side of the concentration camp and approached the southwest corner, three people approached down the road under a flag of truce. We met these people about 75 yards north of the southwest entrance to the camp. These three people were a Swiss Red Cross representative and two SS troopers who said they were the camp commander and assistant camp commander and that they had come into the camp on the night of the 28th to take over from the regular camp personnel for the purpose of turning the camp over to the advancing Americans. The Swiss Red Cross representative acted as interpreter and stated that there were about 100 SS guards in the camp who had their arms stacked except for the people in the tower. He said he had given instructions that there would be no shots fired and it would take about 50 men to relieve the guards, as there were 42,000 half-crazed prisoners of war in the camp, many of them typhus infected. He asked if I were an officer of the American army, to which I replied, “Yes, I am Assistant Division Commander of the 42d Division and will accept the surrender of the camp in the name of the Rainbow Division for the American army.”
According to a newspaper article by Mark Muckenfuss in The Press-Enterprise, Cecil Davis was a B17 pilot who was shot down during a bombing raid, and subsequently sent to a POW camp. He was with a group of American Prisoners of War who got lost while marching through the German countryside in late April 1945; the lost POWs were picked up by a patrol and dropped off at the Dachau "death camp" for three or four days. Davis was assigned to work in the crematorium where he saw the bodies of children that were being burned in "gas ovens."
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]
More than 9,000 Jews with citizenship papers or passports from Latin American countries, entry visas for Palestine, or other documents making them eligible for emigration, arrived in late 1943 and 1944 from Poland, France, Holland and other parts of Europe. During the final months of the war, several groups of these "exchange Jews" were transported from Axis-occupied Europe. German authorities transferred several hundred to neutral Switzerland, and at least one group of 222 Jewish detainees was transferred from Belsen (by way of neutral Turkey) to British-controlled Palestine. /2
Soviet civilian populations in the occupied areas were heavily persecuted.[438] Villages throughout the Soviet Union were destroyed by German troops.[439] Germans rounded up civilians for forced labor in Germany and caused famine by taking foodstuffs.[440] In Belarus, Germany imposed a regime that deported some 380,000 people for slave labor and killed hundreds of thousands of civilians. Over 600 villages had their entire populations killed, and at least 5,295 Belarusian settlements were destroyed by the Germans. According to Timothy Snyder, of "the nine million people who were in the territory of Soviet Belarus in 1941, some 1.6 million were killed by the Germans in actions away from battlefields, including about 700,000 prisoners of war, 500,000 Jews, and 320,000 people counted as partisans (the vast majority of whom were unarmed civilians)".[441] The United States Holocaust Memorial Museum has estimated that 3.3 million of 5.7 million Soviet POWs died in German custody.[442] The death rates decreased as the POWs were needed to help the German war effort; by 1943, half a million had been deployed as slave labor.[409]
Over the years of its operation, from 1933 to 1945, thousands of Dachau prisoners died of disease, malnutrition and overwork. Thousands more were executed for infractions of camp rules. Starting in 1941, thousands of Soviet prisoners of war were sent to Dachau then shot to death at a nearby rifle range. In 1942, construction began at Dachau on Barrack X, a crematorium that eventually consisted of four sizeable ovens used to incinerate corpses. With the implementation in 1942 of Hitler’s “Final Solution” to systematically eradicate all European Jews, thousands of Dachau detainees were moved to Nazi extermination camps in Poland, where they died in gas chambers.
Josef Kramer statement (1945) in: R. Phillips, ed., Trial of Josef Kramer and Forty-Four Others, p. 737. Also quoted in: A. Butz, Hoax, p. 275; Essay by Alan Moorehead, "Belsen," in: Cyril Connolly, ed., The Golden Horizon, pp. 109-110; Dr. Russell Barton, "Belsen," History of the Second World War (Editor: Barrie Pitt, Copyright BPC publications, 1966), Part 109, 1975, p. 3025.

Advocacy organizations worldwide called for British Royal Air Forces to bomb concentration camps particularly at Auschwitz. Although the plan was adopted by British Prime Minister Winston Churchill poor information-sharing between parts of the British government led the order to be ignored and the plan dropped. Such calculations were hardly the low point of Allied Responses. One story has that, low on supplies, the Nazis offered the British a million Jews in exchange for 10,000 trucks, which one British diplomat promptly refused saying, “What would I do with one million Jews? Where would I put them?”
But Auschwitz-Birkenau became more than a concentration camp. In the spring of 1942 gas chambers were built at Birkenau and mass transports of Jews began to arrive. Some of the new arrivals were inducted into the camp as registered prisoners, but the great majority were gassed immediately. These gassing operations were greatly expanded in the spring of 1943 with the construction of four purpose-built gas chamber and crematorium complexes, which included such refinements as electric lifts to carry bodies up to the crematoria. Each crematorium could handle 2,000 victims daily. In a nearby group of barracks, nicknamed 'Canada' by the prisoners, victims' belongings were sorted for transportation to the Reich. The victims' hair was used to stuff mattresses; gold teeth were melted down and the gold deposited to an SS account.
In the Lviv pogroms in occupied Poland in July 1941, some 6,000 Polish Jews were murdered in the streets, on top of 3,000 arrests and mass shootings by Einsatzgruppe C.[231][m] During the Jedwabne pogrom, on 10 July 1941, a group of 40 Polish men killed several hundred Jews; around 300 were burned alive in a barn. The attack is thought to have been organized by the German Security Police (Sicherheitsdienst).[233] A long debate about who was responsible for the Jedwabne murders was triggered in 2001 by the publication of Jan T. Gross's book Neighbors: The Destruction of the Jewish Community in Jedwabne, Poland.[234] The response to the book was described as "the most prolonged and far-reaching of any discussion of the Jewish issue in Poland since the Second World War".[235]
Throughout the spring and summer of 1940, the German army expanded Hitler’s empire in Europe, conquering Denmark, Norway, the Netherlands, Belgium, Luxembourg and France. Beginning in 1941, Jews from all over the continent, as well as hundreds of thousands of European Gypsies, were transported to the Polish ghettoes. The German invasion of the Soviet Union in June 1941 marked a new level of brutality in warfare. Mobile killing units called Einsatzgruppenwould murder more than 500,000 Soviet Jews and others (usually by shooting) over the course of the German occupation.
The camp was liberated on April 15, 1945, by the British 11th Armoured Division.[4] The soldiers discovered approximately 60,000 prisoners inside, most of them half-starved and seriously ill,[5] and another 13,000 corpses, including those of Anne and Margot Frank, lying around the camp unburied.[4] The horrors of the camp, documented on film and in pictures, made the name "Belsen" emblematic of Nazi crimes in general for public opinion in many countries in the immediate post-1945 period. Today, there is a memorial with an exhibition hall at the site.