OPERATION NOBLE EAGLE -- An F-15C Eagle from the 1st Fighter Wing at Langley Air Force, Va., is silhouetted against the horizon at sunrise while performing a combat air patrol mission along the East Coast of the United States in support of Operation Noble Eagle. Nearly as many Air Force active-duty, Guard and Reserves defend American skies in Operation Noble Eagle as are deployed for Operation Enduring Freedom. (U.S. Air Force photo by Staff Sgt. Greg L. Davis)