Fitness Challenge Marines, soldiers, sailors and airmen jump rope during the Okinawa Joint Fitness Challenge at Kadena Air Base, Japan, Sept. 26, 2018. SHARE IMAGE: Download Image: Full Size (3.58 MB) Tags: Army, Air Force, Navy, Marines, Marines Photo By: Staff Sgt. Micaiah Anthony VIRIN: 180926-F-DM566-1578C.JPG Photo Gallery