"Todeslagers" were designed specifically for the systematic killing of people delivered en masse by the Holocaust trains. The executioners did not expect the prisoners to survive more than a few hours beyond arrival at Belzec, Sobibór, and Treblinka. The Reinhard extermination camps were under Globocnik's direct command; each of them was run by 20 to 35 men from the "SS-Totenkopfverbände" branch of the "Schutzstaffel", augmented by about one hundred Trawnikis – auxiliaries mostly from Soviet Ukraine, and up to one thousand "Sonderkommando" slave labourers each. The Jewish men, women and children were delivered from the ghettos for "special treatment" in an atmosphere of terror by uniformed police battalions from both Orpo and Schupo.