AEROSPACE COMMANDER U.S. Air Force Gen. Victor E. Renuart, commander, North American Aerospace Defense Command and U.S. Northern Command, introduces Defense Secretary Robert M. Gates during the NORAD 50th Jubilee Dinner and Ball in Colorado Springs, Colo., May 12, 2008. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 164281-Z-SXN83-002.jpg Photo Gallery