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