F-15E Strike Eagles await the next sortie during Northern Edge 2011 at Eielson Air Force Base, Alaska, June 13. Northern Edge provides effective, flexible and capabilities-centered joint forces ready for deployment worldwide and enables real world proficiency in detection and tracking of units at sea, in the air and on land, in response to multiple crises. The Strike Eagles are assigned to the 391st Fighter Squadron, Mountain Home AFB, Idaho. (U.S. Air Force photo by Staff Sgt. Christopher Boitz/Released)