A U.S. Air Force Combat Control trainee assigned to Operating Location C, 342nd Training Squadron, hangs on to the side of the pool as he catches his breath and readies himself to swim more laps under water during an early morning water circuit training session at Pope Army Airfield, N.C., Feb. 12, 2015. The water circuits lasted about an hour before students were made to quickly get out of the pool and hustle to the gym for their next training session. (U.S. Air Force photo by Staff Sgt. Kenny Holston/Released)
Staff Sgt. Kenneth Holston
Taken on 12 February 2015
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