On 13 October 1941, the SS and Police Leader Odilo Globocnik stationing in Lublin received an oral order from "Reichsführer-SS" Heinrich Himmler – anticipating the fall of Moscow – to start immediate construction work on the killing centre at Bełżec in the General Government territory of occupied Poland. Notably, the order preceded the Wannsee Conference by three months, but the gassings at Kulmhof north of Łódź using gas vans began already in December, under "Sturmbannführer" Herbert Lange. The camp at Bełżec was operational by March 1942, with leadership brought in from Germany under the guise of Organisation Todt (OT). Auschwitz concentration camp was fitted with brand new gas chambers in March 1942. Majdanek had them built in September.