▁went ▁back ▁to ▁the ▁illegal ▁political ▁work . ▁In ▁Berlin , ▁after ▁the ▁attack ▁on ▁the ▁Soviet ▁Union ▁in ▁ 1 9 4 1 , ▁he ▁built ▁up ▁the ▁biggest ▁K PD ▁resistance ▁group , ▁called ▁the ▁" Oper ative ▁Le ad ership ▁of ▁the ▁K PD ". ▁In ▁ 1 9 4 4 , ▁he , ▁Bern hard ▁B äst lein ▁and ▁Franz ▁Jacob ▁( Res istance ▁f ighter ) ▁led ▁the ▁Sa ef kow - Jac ob - B äst lein ▁Organ ization ▁which ▁ag itated ▁against ▁the ▁war ▁in ▁Berlin ▁m un itions ▁plants , ▁and ▁called ▁on ▁people ▁to ▁commit ▁sab ot age . ▁ ▁In ▁April ▁ 1 9 4 4 , ▁the ▁Social ▁Dem ocrat ▁Adolf ▁Reich we in ▁made ▁contact ▁with ▁Sa ef kow ▁with ▁a ▁view ▁to ▁involve ▁him ▁with ▁the ▁K PD ▁group ▁in ▁the ▁ 2 0 ▁July ▁Plot ▁which ▁sought ▁to ▁assass inate ▁or ▁otherwise ▁over throw ▁Adolf ▁Hitler . ▁It ▁eventually ▁took ▁the ▁form ▁of ▁the ▁well - known ▁ 2 0 ▁July ▁bomb ▁attack ▁on ▁the ▁F ühr er ▁at ▁the ▁latter ' s ▁H Q , ▁the ▁Wolf ' s ▁La ir ▁in ▁East ▁Pr uss ia . ▁It ▁fam ously ▁failed ▁with ▁dire ▁consequences ▁for ▁the ▁plot ters . ▁ ▁Ar rest ▁and ▁Exec ution ▁In ▁July ▁ 1 9 4 4 , ▁Sa ef kow ▁was ▁arrested , ▁sent enced ▁to ▁death ▁by ▁the ▁" Pe ople ' s ▁Court " ▁Volks gericht sh of ▁on ▁