Returning to civilian life, Damian resumed teaching. He joined the
Nazi Party on 1 May 1929 (membership number 133,642). He served as the treasurer of the
Ortsgruppe (local group) in Neustadt for the next two years. On 1 January 1930, he also joined the
Sturmabteilung (SA) and was assigned to the local SA-
Standarte. He advanced to
Führer of SA-
Standarte 18 on 1 May 1931 and, on 1 May 1935, he became the
Führer of SA-
Brigade 51 in Neustadt. Damian next was assigned to the Supreme SA Leadership (OSAF) in
Munich on 15 July 1936, and was attached to the Courts and Legal Office. On 15 October 1936, he was made a department head within that office and, on 1 November 1937, he was promoted to chief of the entire office. From November 1937 to April 1941, he served as the Chief of the Supreme SA Court and was also assigned as a
Beisitzer (associate lay judge) on the
Supreme Party Court. In August 1939, on the eve of the outbreak of the
Second World War, Damien joined the
German Army with the rank of
Hauptmann of
reserves. He saw action as a company and
battalion commander with Infantry Regiment 63 in the
Polish and
French campaigns. He was released from military service on 9 May 1941, having earned the
Clasp to the Iron Cross, 1st and 2nd class. He then obtained an appointment as an associate lay judge of the
People's Court for the duration of the war. On 14 April 1941, Damian returned to an SA field command as
Führer of SA-
Gruppe Oberrhein, with headquarters in
Strasbourg. On 9 November 1944, he was promoted to SA-
Obergruppenführer, one of the last such appointments. He retained his SA command until Germany's surrender in May 1945.
SA ranks == Political activity ==