The Hiwi Wachmänner guards known as "Trawniki men" (Trawnikimänner) served at death camps as well as all major killing sites of the "Final Solution" in the course of Operation Reinhard. They took an active role in the executions of Jews at Belzec, Sobibor, Treblinka II, Warsaw (three times), Częstochowa, Lublin, Lvov, Radom, Kraków, Białystok (twice), Majdanek as well as Auschwitz, not to mention Trawniki itself during Aktion Erntefest of 1943,[10] and the remaining subcamps of KL Lublin including Poniatowa, Budzyn, Kraśnik, Puławy, Lipowa, as well as during massacres in Łomazy, Międzyrzec, Łuków, Radzyń, Parczew, Końskowola, Komarówka and all other locations, augmented by the SS, and the Reserve Police Battalion 101 from Orpo.[2][11] After the war, the last 1,000 Hiwis forming the SS Battalion Streibel blended with the civilian population in West Germany and disappeared from sight.[4]