Senior Airman Maxwell Seley, 67th Fighter Squadron Aircraft Maintenance Unit crew chief, inspects the topside of an F-15 Eagle after it arrives from Kadena Air Base, Japan, in support of Vigilant Ace 16 on Gwangju Air Base, Nov. 2, 2015. Vigilant Ace 16 is a regularly scheduled training event designed to enhance the readiness of U.S. and Republic of Korea forces. (U.S. Air Force photo/Senior Airman Omari Bernard)