In October 1939 Hitler signed a "euthanasia decree" backdated to 1 September 1939 that authorized Reichsleiter Philipp Bouhler, the chief of Hitler's Chancellery, and Karl Brandt, Hitler's personal physician, to carry out a program of involuntary "euthanasia"; after the war this program was named Aktion T4. It was named after Tiergartenstraße 4, the address of a villa in the Berlin borough of Tiergarten, where the various organizations involved were headquartered. T4 was mainly directed at adults, but the "euthanasia" of children was also carried out. Between 1939 and 1941, 80,000 to 100,000 mentally ill adults in institutions were killed, as were 5,000 children and 1,000 Jews, also in institutions. In addition there were specialized killing centres, where the deaths were estimated at 20,000, according to Georg Renno, the deputy director of Schloss Hartheim, one of the "euthanasia" centers, or 400,000, according to Frank Zeireis, the commandant of the Mauthausen concentration camp. Overall, the number of mentally and physically handicapped murdered was about 150,000.
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 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.
Shipments of Jews to the camps had priority over anything but the army's needs on the German railways, and continued even in the face of the increasingly dire military situation at the end of 1942. Army leaders and economic managers complained about this diversion of resources and the killing of skilled Jewish workers, but Nazi leaders rated ideological imperatives above economic considerations.
After 1945 the name was applied to the displaced persons camp established nearby, but it is most commonly associated with the concentration camp. From 1941 to 1945, almost 20,000 Soviet prisoners of war and a further 50,000 inmates died there. Overcrowding, lack of food and poor sanitary conditions caused outbreaks of typhus, tuberculosis, typhoid fever and dysentery, leading to the deaths of more than 35,000 people in the first few months of 1945, shortly before and after the liberation.