CHANGE OF COMMAND Secretary of Defense Robert Gates hands the U.S. Northern Command flag to U.S. Air Force Gen. (sel) Victor Renuart during a change-of-command ceremony at Peterson Air Force Base, Colo., March 23, 2007. SHARE IMAGE: Download Image: Full Size (0.03 MB) Photo By: VIRIN: 486412-J-FIS69-854.jpg Photo Gallery