By 1920, Strasser, and his paramilitary group had joined forces with Adolf Hitler's Nazi Party (NSDAP), another far-right political party seated in Munich. During the autumn of 1922, Strasser officially became a member of the NSDAP and the SA. Strasser's leadership qualities were soon recognized and he was appointed as regional head of the "Sturmabteilung" ("Storm Detachment"; SA) in Lower Bavaria. In November 1923, he took an active part in the unsuccessful Beer Hall Putsch, a coup attempt by Hitler and Ludendorff against the Weimar Republic. He was tried with other putschists shortly after Hitler's trial, convicted of aiding and abetting high treason—his actual arrest was for attempting to recruit soldiers for the NSDAP, which had been outlawed—on 12 May and sentenced to 15 months imprisonment and a small fine.