A U.S. Air Force F-15 Eagle taxis down the flightline while others await pre-flight inspection during a local operational readiness exercise on Kadena Air Base, Japan March 2, 2011. Aircraft from Kadena's 67th Fighter Squadron, 909th Air Refueling Squadron, and 961st Airborne Air Control Squadron are participating in Cope North 2012, a trilateral exercise on Anderson Air Force Base, Guam. (U.S. Air Force photo/ Staff Sgt. Darnell T. Cannady)