Sturmbannführer was a Nazi Party paramilitary rank equivalent to major that was used in several Nazi organizations, such as the SA, SS, and the NSFK. Translated as "assault (or storm) unit leader" (Sturmbann being the SA and early SS equivalent to a battalion), the rank originated from German shock troop units of the First World War. The rank was held by Wernher von Braun, who developed the V-2 rocket, and later designed the Saturn V rocket for the U.S. space program. Also, Eberhard Heder, Otto Günsche and war criminals, such as Otto Förschner.