Crew chiefs assigned to the 18th Aircraft Maintenance Squadron discuss the preparation requirements for a 67th Fighter Squadron F-15C Eagle before a mission at Kadena Air Base, Japan, Sept. 16, 2019. The 18th AMXS maintains numerous F-15s, allowing the 44th and 67th Fighter Squadrons to play a vital role in combat operations to ensure a free and open Indo-Pacific for America and its allies. (U.S. Air Force photo by Tech. Sgt. Matthew B. Fredericks)