Airman Marcus Gray
Airman Marcus Gray, 51st Civil Engineer Squadron firefighter, dons protective clothing during a live fire training exercise on Osan Air Base, Republic of Korea, March 26, 2018. U.S. and Republic of Korea Air Force firefighters worked together in a live fire training exercise to improve communications and their ability to work together under stress.
(U.S. Air Force photo by Staff Sgt. Benjamin Raughton)