Oath of enlistment
PETERSON AIR FORCE BASE, Colo. – U.S. Army Gen. Charles Jacoby Jr. (left), NORAD/USNORTHCOM commander, administers the oath of enlistment to Staff Sgt. Andrew Clark, 21st Communications Squadron, Dec. 15 in Building 2. Clark is a network maintenance technician and supports NORAD/USNORTHCOM, Air Force Space Command, and five geographically separated units by maintaining and troubleshooting secure communication service interruptions, and monitoring secure worldwide teleconferences. (U.S. Air Force photo)