Members of North American Aerospace Defense Command (NORAD) stand at attention during the U.S. Northern Command change of command ceremony at Peterson AFB, Colo., March 23, 2007. U.S. Navy Adm. Timothy J. Keating turned over command of NORTHCOM and NORAD to U.S. Air Force Gen. Victor E. Renuart, Jr. in a ceremony presided over by Secretary of Defense Robert M. Gates and Canadian Gen. R.J. Hillier, Chief of the Defense Staff. Members of North American Aerospace Defense Command (NORAD) stand at attention during the U.S. Northern Command change of command ceremony at Peterson AFB, Colo., March 23, 2007. U.S. Navy Adm. Timothy J. Keating turned over command of NORTHCOM and NORAD to U.S. Air Force Gen. Victor E. Renuart, Jr. in a ceremony presided over by Secretary of Defense Robert M. Gates and Canadian Gen. R.J. Hillier, Chief of the Defense Staff. SHARE: Download: Full Size (1.04 MB) Tags: photo essays Credit: VIRIN: 578364-F-DJE07-273.jpg Photo Gallery