COMMANDER'S GREETING Defense Secretary Chuck Hagel talks with Army Gen. Charles H. Jacoby Jr., commander of North American Aerospace Defense Command and U.S. Northern Command, upon his arrival on Peterson Air Force Base in Colorado Springs, Colo., June 27, 2013. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 027933-H-NLR00-866.jpg Photo Gallery