Volunteers serve food to U.S. military personnel and their family members during the 2012 Langley-Eustis Appreciation Day at Langley Air Force Base, Va., Aug. 3, 2012. Agencies across the base joined forces to provide a day of food, fun and entertainment to thank military personnel for their daily contributions toward accomplishing the mission of Joint Base Langley-Eustis. (U.S. Air Force photo by Tech. Sgt. Barry Loo/Released)