The camp of huts near Fallingbostel became known as Stalag XI-B and was to become one of the Wehrmacht's largest POW camps, holding up to 95,000 prisoners from various countries. In June 1940, Belgian and French POWs were housed in the former Bergen-Belsen construction workers' camp. This installation was significantly expanded from June 1941, once Germany prepared to invade the Soviet Union, becoming an independent camp known as Stalag XI-C (311). It was intended to hold up to 20,000 Soviet POWs and was one of three such camps in the area. The others were at Oerbke (Stalag XI-D (321)) and Wietzendorf (Stalag X-D (310)). By the end of March 1942, some 41,000 Soviet POWs had died in these three camps of starvation, exhaustion, and disease. By the end of the war, the total number of dead had increased to 50,000. When the POW camp in Bergen ceased operation in early 1945, as the Wehrmacht handed it over to the SS, the cemetery contained over 19,500 dead Soviet prisoners.
In early 1942 the Nazis built killing centres at Treblinka, Sobibor, and Belzec in occupied Poland. The death camps were to be the essential instrument of the “final solution.” The Einsatzgruppen had traveled to kill their victims. With the killing centres, the process was reversed. The victims were taken by train, often in cattle cars, to their killers. The extermination camps became factories producing corpses, effectively and efficiently, at minimal physical and psychological cost to German personnel. Assisted by Ukrainian and Latvian collaborators and prisoners of war, a few Germans could kill tens of thousands of prisoners each month. At Chelmno, the first of the extermination camps, the Nazis used mobile gas vans. Elsewhere they built permanent gas chambers linked to the crematoria where bodies were burned. Carbon monoxide was the gas of choice at most camps. Zyklon-B, an especially lethal killing agent, was employed primarily at Auschwitz and later at Majdanek.
I can only repeat what my late father told me. The wooden building appeared to be disguised as a shower room with a water tank on the roof. He did mention that there was a crematorium oven nearby but I cannot remember exactly what he said. My father died in 1972 so my memories are over 30 years old. He did explore the complex which had been built recently and noted the blast proof hermetically sealed doors. There was a hatch in the ceiling leading to the hut above. Each hatch was also hermetically sealed and identified by a letter and a number such as A3.
The camp changed its name to Bergen-Belsen and was converted into a concentration camp in 1943. Jews with foreign passports were kept there to be exchanged for German nationals imprisoned abroad, although very few exchanges were made. About 200 Jews were allowed to immigrate to Palestine and about 1,500 Hungarian Jews were allowed to immigrate to Switzerland, both took place under the rubric of exchanges for German nationals.
In Dachau, as in other Nazi camps, German physicians performed medical experiments on prisoners, including high-altitude experiments using a decompression chamber, malaria and tuberculosis experiments, hypothermia experiments, and experiments testing new medications. Prisoners were also forced to test methods of making seawater potable and of halting excessive bleeding.
Among the notable graduates from Dachau was Aumeier, Baer, Fritzsch, Hoess, Hoffmann, Rieck, Schwarzhuber, Stark, Tauber, Thumann, Dr Wirths who served in Auschwitz, Dolp who was commandant of Belzec labour camp, Koch who was commandant at Buchenwald and Majdanek, and Koegel who was also commandant at Majdanek, Ruppert and Schramm who served at Majdanek, Josef Kramer who was commandant at Birkenau and Bergen Belsen, and Egon Zill who served at Buchenwald and Ravensbruck among others.
Between the years 1933 and 1945, more than 3.5 million Germans were imprisoned in such concentration camps or prison for political reasons. Approximately 77,000 Germans were killed for one or another form of resistance by Special Courts, courts-martial, and the civil justice system. Many of these Germans had served in government, the military, or in civil positions, which were considered to enable them to engage in subversion and conspiracy against the Nazis.
In the summer of 1943, Stalag XI-C (311) was dissolved and Bergen-Belsen became a branch camp of Stalag XI-B. It served as the hospital for all Soviet POWs in the region until January 1945. Other inmates/patients were Italian military internees from August 1944 and, following the suppression of the Warsaw Uprising in October 1944, around 1,000 members of the Polish Home Army were imprisoned in a separate section of the POW camp.