In 1921, he also became active in the Freikorps Rossbach while studying engineering at the Technical University in Berlin;[4] where he eventually earned a civil engineering degree.[7] Two years later he joined the Nazi Party (NSDAP) and was assigned Party number 31,981;[8] He also joined the Greater German Workers Party in the same year.[9] From 1924, he helped to organize the Berlin Frontbann, largely a front organization for the Nazi Sturmabteilung (SA), since it and the Nazi Party were banned in Prussia at the time.[9] In 1926 he joined the SA directly, eventually becoming the leader of Berlin's SA and Goebbels' deputy Gauleiter, or Party leader, in Berlin.[10] Throughout the period 1926—1929, Daluege led the Berlin-Brandenburg division of the SA.[7]