AWACs keep an eye out during Northern Edge
JOINT BASE ELMENDORF- RICHARDSON, Alaska -- An E-3 Sentry Airborne Warning and Control System stands prepared for take off during Exercise Northern Edge 11 in JBER, Alaska, June 22, 2011. Northern Edge, Alaska's largest military training exercise, is designed to prepare joint forces to respond to crises throughout the Asia-Pacific region. (U.S. Navy photo/Mass Communication Specialist 2nd Class Rufus Hucks)