rent ice , ▁joined ▁the ▁Young ▁Commun ist ▁League ▁of ▁Germany ▁to ▁whose ▁Berlin ▁leadership ▁he ▁rose ▁in ▁ 1 9 2 2 . ▁ ▁Activ ism ▁In ▁ 1 9 2 7 , ▁he ▁became ▁secretary ▁of ▁the ▁Commun ist ▁Party ▁of ▁Germany ▁( K PD ) ▁in ▁Berlin , ▁then ▁in ▁Dresden . ▁From ▁ 1 9 2 9 - 1 9 3 2 , ▁he ▁led ▁the ▁Revolution ary ▁Trade ▁Union ▁O pp osition ▁( Re volution äre ▁Ge werk schaft s - O pp osition ; ▁R GO ) ▁in ▁the ▁K PD ▁Ru hr ▁district ▁and ▁became ▁in ▁ 1 9 3 2 ▁political ▁leader ▁of ▁the ▁K PD ' s ▁Wass erk ante ▁district ▁in ▁Hamburg . ▁In ▁ 1 9 3 2 , ▁Sa ef kow ▁married ▁The od ora ▁Bre y ▁who ▁was ▁also ▁active ▁in ▁the ▁under ground ▁resistance . ▁ ▁Im pr ison ment ▁From ▁April ▁ 1 9 3 3 ▁to ▁April ▁ 1 9 3 4 , ▁Sa ef kow ▁was ▁in ▁a ▁concentration ▁camp , ▁followed ▁by ▁two ▁and ▁a ▁half ▁years ▁in ▁a ▁Z uch th aus ▁at ▁hard ▁labour , ▁followed ▁by ▁a ▁spell ▁at ▁the ▁D ach au ▁concentration ▁camp . ▁There , ▁he ▁organized ▁an ▁illegal ▁rem emb rance ▁service ▁for ▁Ed gar ▁André ▁and ▁as ▁a ▁result ▁was ▁given ▁another ▁two ▁years ▁of ▁imprison ment . ▁ ▁Res istance ▁Re leased ▁from ▁det ention ▁in ▁July ▁ 1 9 3 9 , ▁Sa ef kow