Sgt. Zach Grimm
U.S. Army Sgt. Zach Grimm, Okinawa Joint Experience Blue Team student, performs push-ups during the Okinawa Joint Fitness Challenge Sept. 26, 2018, at Kadena Air Base, Japan. The OJFC was designed to mimic obstacles and challenges faced in the battlefield such as sprinting, running ammunition cans, transporting wounded personnel to safety and tossing simulated grenades. Each team competed for the best time, however the final challenge brought all four teams together.
(U.S. Air Force photo by Staff Sgt. Micaiah Anthony)