They had no problem. The first extermination camp was Chelmno, which began regular, routine mass gassings on 8 December 1941. The aim at Chelmno was to kill all new arrivals as soon as practical - usually within 24 hours.
Some confusion may come up with the 'Action Reinhard camps', as Chelmno (nor Auschwitz) was not included in these. Also Auschwitz as a concentration camp was set up first, but the part of Auschwittz (Birkenau) that was a death camp was not on-line by then.
The first death camp to become operational was Chelmno on 8 December 1941. (In this context I assume that death camprefers to a camp intended entirely or almost entirely for killing).
This death camp was the first liberated by the Allies.
The first camp to be freed was Majdanek, which was actually in the city of Lublin in Poland. Part of it was an 'ordinary' concentration camp, the other part was an extermination camp (death camp). It was freed by Soviet forces on 22 July 1944.
The First 48 - 2004 Return to Sender Death Camp 8-2 was released on: USA: 8 January 2009
The Nazi extermination camps were set up in 1941-42 by the SS with the assistance of doctors (!) who had been active in the Nazi T4 euthanasia program. By the way, the term 'death camp' is misleading as it suggests ''any'' concentration camp which had a high death toll. Professional historians of the period generally prefer the term extermination camp for camps that existed purely in order to kill.Please see the related questions.
Probably the troops guarding them.
yes
The Death Camp of Tolerance was created on 2002-11-20.
The first major camp liberated by Soviet forces was Majdanek on 22 July 1944. (They had retaken the site of Maly Trostenets earlier, but there were no survivors left to liberate: all the prisoners had been killed).
Bergen-Belsen was a concentration camp. It was NOT a death camp.
She never went to a concentration camp, She escaped the death train and her death.
The famous sign reading Arbeit macht frei was above the main entrance to Auschwitz I, which was the camp established in May and June 1940, that is, the first of the concentration camp sections.