AWARD PRESENTATION Defense Secretary Robert M. Gates presents the Defense Distinguished Service Medal to outgoing Commander Air Force Gen. Gene Renuart during the North American Aerospace Defense Command and U.S. Northern Command Change of Command ceremony on Peterson Air Force Base, Colo., May 19, 2010. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 261947-W-QSY03-393.jpg Photo Gallery