WELCOME TO COLORADO Defense Secretary Robert M. Gates meets U.S. Air Force Gen. Victor E. Renuart, commander, North American Aerospace Defense Command and U.S. Northern Command, Peterson Air Force Base, Colo., upon his arrival in Colorado Springs, Colo., May 12, 2008. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 805378-B-OKB52-251.jpg Photo Gallery