Theodor Eicke was a German military officer who served as both a senior SS functionary and a Waffen-SS divisional commander in Nazi Germany. He was a key figure in the development of Nazi concentration camps. Eicke served as the second commandant of the Dachau concentration camp from June 1933 to July 1934, and together with his adjutant Michael Lippert, was one of the executioners of SA Chief Ernst Röhm during the Night of the Long Knives purge of 1934. He continued to expand and develop the concentration camp system as the first Concentration Camps Inspector.