Otto Johann Anton Skorzeny (12 June 1908 – 5 July 1975) was an Austrian-born German SS-"Obersturmbannführer" (lieutenant colonel) in the Waffen-SS during World War II. During the war, he was involved in several operations, including the removal from power of Hungarian Regent Miklós Horthy and the Gran Sasso raid which rescued Benito Mussolini from captivity. Skorzeny led Operation Greif in which German soldiers infiltrated Allied lines by using their opponents' uniforms, equipment, language and customs. He was charged for that at the Dachau Military Tribunal with breaching the 1907 Hague Convention, but was acquitted after a former British SOE agent F. F. E. Yeo-Thomas testified that he and his operatives had worn German uniforms behind enemy lines.