the german nazi-ideologist alfred rosenberg suggested that conquered soviet territory should be administered in the following reichskommissariats : ostland ( the baltic countries and belarus ) ukraine ( ukraine and adjacent territories ) , kaukasus ( southern russia and the caucasus area ) , moskau ( moscow metropolitan area and the rest of european russia ) turkestan ( central asian republics and territories ) ral ( central and south ural and nearest territories , created from planned east russian european territorial reorganization ) west sibirien ( future west siberia and novosibirsk held lands ) nordland ( soviet arctic areas : west nordland ( russian european north coasts ) and ost nordland ( northwest siberian north coasts ) german policy aimed to destroy the soviet union as a political entity in accordance with the geopolitical lebensraum idea ( drang nach osten ) for the benefit of future german generations in the centuries to come .