The Zionists at Bergen-Belsen, who wanted to go to Palestine, were housed at the Germany Army Training Center to wait for permission from the British who were in control of Palestine at that time. The DP camp at the Army Base was the largest one in Europe. It remained open until 1950, after the last Jews had emigrated to Palestine or some other country.
The number of Jewish prisoners at Dachau rose with the increased persecution of Jews. On November 10–11, 1938, in the aftermath of Kristallnacht, more than 10,000 Jewish men were interned there. (Most of men in this group were released after incarceration of a few weeks to a few months, many after proving they had made arrangements to emigrate from Germany.)
Historians increasingly view the Holocaust as a pan-European phenomenon, or a series of holocausts impossible to conduct without the help of local collaborators. Over 200,000 people are estimated to have been Holocaust perpetrators; without them, the Germans would not have been able to extend the Holocaust across most of Europe. Some Christian churches tried to defend the Jews by declaring that converted Jews were "part of the flock," according to Saul Friedländer, "but even then only up to a point". Otherwise, Friedländer writes, "[n]ot one social group, not one religious community, not one scholarly institution or professional association in Germany and throughout Europe declared its solidarity with the Jews."
More camps opened in the spring and summer of 1942, when the Nazis began systematically clearing the ghettos in Poland and rounding up Jews in western Europe for 'deportation to the East'. The killing of the Polish Jews, code-named 'Project Reinhardt', was carried out in three camps: Treblinka, near Warsaw (850,000 victims); Belzec, in south-eastern Poland (650,000 victims); and Sobibor, in east-central Poland (250,000 victims). Some Jews from western Europe were sometimes taken to these camps as well, but most were killed at the biggest and most advanced of the death camps, Auschwitz.
There was a typhus epidemic raging in the camp and 900 prisoners at Dachau were dying of the disease when the liberators arrived, according to the account of Marcus J. Smith. Smith was an Army doctor, who along with 9 others, formed Displaced Persons Team 115, which was sent to Dachau after the liberation. In his book entitled "Dachau: The Harrowing of Hell," Smith wrote that eleven of the barracks buildings at the Dachau camp had been converted into a hospital to house the 4,205 sick prisoners. Another 3,866 prisoners were bed ridden.
According to Herbert Stolpmann, who was a former German soldier working for the US military at Dachau after the liberation of the camp, some of the Dachau prisoners lived with families in the town of Dachau during the war and worked for them. Stolpmann's father-in-law owned the Bielmeier bakery, which supplied bread for the prisoners in the camp. Two Russian boys, aged 13 and 14, lived with the family and worked at the bakery, which was called an Arbeitskommando or Work Commando. When the boys reached the ages of 16 and 17, they were taken to the camp and executed. They had been sentenced to death after they were captured as Partisans, but under the German law, no one under the age of 16 could be executed. The Bielmeier family also had a French woman from the Dachau camp living with them; she was engaged to be married to an SS guard, but she was also taken away, never to be seen again.
The workers who constructed the original buildings were housed in camps near Fallingbostel and Bergen, the latter being the so-called Bergen-Belsen Army Construction Camp. Once the military complex was completed in 1938/39, the workers' camp fell into disuse. However, after the German invasion of Poland in September 1939, the Wehrmacht began using the huts as a prisoner of war (POW) camp.