During the war Aufderbeck was in contact with the resistance group around Prof. Theodor Lieser . As the end approached Halle was occupied by US troops on 17 April 1945 , and Theodor Lieser was installed by them as the city 's Lord Mayor . Although Halle was liberated by Americans , by the time war ended zones of occupation had been agreed which placed Halle in the Soviet occupation zone in what remained of Germany , and in July 1945 the Americans withdrew and were replaced by the Red army . Both under US occupation and under the longer period of Soviet administration which followed , Aufderbeck focused on youth work . He was a member of the " Archbishop 's Council for Imperiled Youth " ( '' " Erziehungsbeirats für gefährdete Jugendliche " '' ) and of the " Advisory Council for Public Youth Support " . He was the Roman Catholic representative in liaison with the newly formed Free German Youth ( FDJ / '' Freie Deutsche Jugend '' ) . The FDJ was the youth wing of the recently renamed and reconstituted ruling party in this part of Germany , which by the later 1940s was in the process of reverting to one-party dictatorship . In 1947 Aufderbeck was appointed by Wilhelm Weskamm , the episcopal commissioner ( who later became the Bishop of Berlin ) as the permanent representative of the Archbishop 's Commission for Youth Work in the Province of Saxony . The context for these developments , and for much of Aufdebeck 's subsequent career , was the political frontier which since 1945 had divided the eastern half of the Paderborn archdiocese from Paderborn itself . Although this secular border was initially thoroughly porous , it would become progressively less so after the reinvention , formally in October 1949 , of the Soviet occupation zone as the new Soviet sponsored German Democratic Republic . Because of the way in which FDJ activity was ever more overtly blended into the increasingly ubiquitous political activity of the ruling SED ( party ) , Aufderbeck 's contacts with the FDJ were fairly soon abandoned
been agreed
Yalta Conference
Hugo Aufderbeck