U.S. Air Force Staff Sgt. Brandon Long, a survival, evasion, resistance and escape (SERE) specialist assigned to the 1st Operations Support Squadron, demonstrates natural camouflage during SERE training at Langley Air Force Base, Va., Nov. 19, 2015. A SERE specialist trains in all major climatic conditions including arctic, desert, tropical, ocean and temperate. (U.S. Air Force photo by Airman 1st Class Derek Seifert)