The Krychów camp was the main branch of the new complex.It was set up at a former Polish correctional centre and was the largest of the 16 forced labour camps of the Nisko Plan.Also discovered in 2014 were a pendant inscribed with the word "Palestine (Eretz Israel)", in Hebrew, English, and Arabic, dating from 1927; earrings; a wedding band bearing a Hebrew inscription; and perfume bottles that belonged to Jewish victims.Beginning in 1940, the Nazi Schutzstaffel (SS) had established the so-called Lublin Reservation near Sobibór.Soon after that, the heavy concentration of Jews in the area was discussed by the Nazi officials at the October 1941 meeting in occupied Lublin, attended by Hans Frank, Ernst Boepple, and Odilo Globocnik among others, proposing the creation of a new order.Sobibór was located 145 kilometres (90 mi) from Bełżec, less than a three-hour drive away.Fuchs installed the engine on a cement base at Sobibór in the presence of Floss, Bauer, Stangl, and Barbl, and connected the engine exhaust manifold to pipes leading to the gas chamber. I repaired the ignition and the valve and finally got the engine to start.We put the engine on a concrete plinth and attached a pipe to the exhaust outlet. The chemist whom I already knew from Bełżec went into the gas chamber with a measuring device in order to gauge the gas concentration. I seem to remember that thirty to forty women were gassed.
The district was intended to become an agricultural centre of the General Plan East, inhabited by the ethnic German "colonists" brought by Heim ins Reich into the Empire.Christian Wirth, the commander of Bełżec and Inspector of Operation Reinhard, arrived in Sobibór to witness one of the gassings, with about 30–40 Jewish women from the Krychów camp brought in for this purpose.The first commandant of Sobibór appointed by Heinrich Himmler was SS-Obersturmführer Franz Stangl, the manager of the T-4 Euthanasia Program in Nazi Germany at both the Hartheim and Bernburg extermination hospitals.The camp was part of the secretive Operation Reinhard, which marked the deadliest phase of the Holocaust in German-occupied Poland.The camp was situated near the rural county's major town of Włodawa (called Wolzek by the Germans), 85 km south of the provincial capital, Brest-on-the-Bug (Brześć nad Bugiem in Polish).