A runner treks across the flightline during the “Gobble Wobble” 5K race at Langley Air Force Base, Va., Nov. 22, 2013. Participants were encouraged to bring a donation of either food or money to the race in support of Operation Warmheart, which helps military families in need during the holiday season. (U.S. Air Force photo by Staff Sgt. Jarad A. Denton/Released)