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Air Force Staff Sgt. Amann Davis, Okinawa Joint Experience Red Team student, carries Marine Corps Sgt. Thomas Warren, OJE Red Team student, 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. (U.S. Air Force photo by Staff Sgt. Micaiah Anthony)