ariat ▁Ukraine ; ▁shortly ▁after ▁the ▁German ▁con quest ▁of ▁the ▁Ukrain ian ▁Soviet ▁Social ist ▁Republic ▁in ▁Operation ▁Bar bar ossa ▁against ▁the ▁Soviet ▁Union , ▁Germany ' s ▁former ▁co - bell iger ent ▁in ▁the ▁invasion ▁of ▁Poland . ▁ ▁The ▁Ukrain ian ▁A ux ili ary ▁Police ▁was ▁created ▁by ▁Heinrich ▁Him ml er ▁in ▁mid - August ▁ 1 9 4 1 ▁and ▁put ▁under ▁the ▁control ▁of ▁German ▁Or dn ung sp ol ize i ▁in ▁General ▁Government ▁territory . ▁The ▁actual ▁Reich sk omm iss ariat ▁Ukraine ▁was ▁formed ▁officially ▁on ▁ 2 0 ▁August ▁ 1 9 4 1 . ▁The ▁uniform ed ▁force ▁was ▁composed ▁in ▁large ▁part ▁of ▁the ▁former ▁members ▁of ▁the ▁Ukrain ian ▁People ' s ▁Milit ia ▁created ▁by ▁O UN ▁in ▁June . ▁There ▁were ▁two ▁categories ▁of ▁German - control led ▁Ukrain ian ▁armed ▁organis ations . ▁The ▁first ▁compr ised ▁mobile ▁police ▁units ▁most ▁often ▁called ▁Schutz mannschaft , ▁or ▁Sch uma , ▁organized ▁on ▁the ▁batt alion ▁level ▁and ▁which ▁engaged ▁in ▁the ▁murder ▁of ▁Jews ▁and ▁in ▁security ▁war fare ▁in ▁most ▁areas ▁of ▁Ukraine . ▁It ▁was ▁sub ordin ated ▁directly ▁to ▁the ▁German ▁Commander ▁of ▁the ▁Order ▁Police ▁for ▁the ▁area . ▁ ▁The ▁second ▁category ▁was ▁the ▁local ▁police ▁force ▁( appro xim ately , ▁a ▁const ab ul ary ), ▁called ▁simply ▁the ▁Ukrain ian ▁Police ▁( UP ) ▁by ▁the ▁German ▁administration , ▁which ▁the ▁SS ▁raised ▁most ▁successfully ▁in