Shells on shells on shells
U.S. Air Force Airman 1st Class Zachary McGrail, 18th Munitions Squadron munitions storage crew member, calls out serial numbers to Senior Airman Roderick Harris, 18th MUNS munitions storage crew member, Dec. 19, 2017, at Kadena Air Base, Japan. The 18th MUNS provides the wing and associate units with munitions for more than 6,000 annual sorties. (U.S. Air Force photo by Senior Airman Quay Drawdy)