U.S. Army Spc. Christopher Bishop, a cavalry scout

U.S. Army Spc. Christopher Bishop, a cavalry scout with Headquarters and Headquarters Company, Brigade Combat Team, 1st Cavalry Division, Fort Hood, Texas, performs ammo can squats during the U.S. National Guard 5k race and Minuteman Challenge on Bagram Air Field, Dec. 14, 2013. Coryell was on Team Black Jack Enlisted. The race and challenge concluded a three-day National Guard 377th Birthday celebration hosted by the Ohio National Guard 437th Military Police Battalion and National Guard Affairs - Afghanistan. (U.S. Army photo by Sgt. Quentin Johnson, 2nd BCT PAO, 1CD)