Above the clouds
A B-52 Stratofortress assigned to Barksdale Air Force Base, La., trails behind a KC-135 Stratotanker from McConnell Air Force Base, Kan., during an air refueling training exercise, Dec. 6, 2014. The KC-135 was operated by an aircrew from the Air Force Reserve 931st Air Refueling Group at McConnell. (U.S. Air Force photo by Senior Master Sgt. Ray Lewis)