Senior Airman Casey Wheatley, 436th Security Force Squadron military working dog handler, and his K-9, Veto, compete in the 16th Annual  Security Forces Ruck March Feb. 21, 2015, at Dover Air Force Base, Del. The course was 6.2 miles and runners were required to wear a 30-pound ruck sack for the entire event. (U.S. Air Force photo/Airman 1st Class William Johnson)
Airman 1st Class William Johnson
Taken on 21 February 2015
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