 Complete the following phrase:  Like other RSHA staff, Sattler was assigned to what the head of the RSHA, Reinhard Heydrich, liked to refer to as the Kämpfende Verwaltung Fighting Administration - elsewhere identified as Germanys paramilitary taskforces, which were much expanded at the time of the German invasion of the Soviet Union. In this context he seems to have served in Byelorussia and Russia, although even his family was being kept in the dark as to his whereabouts by this point. Between September 1941 and January 1942 Sattler was listed as an orderly officer of Advance Command Moscow of the Special Commando with Taskforce Group B. It emerged much later that during 