Official websites use .mil
Secure .mil websites use HTTPS
An Airman assigned to the 25th Aircraft Maintenance Unit pre-flights an A-10 Thunderbolt II at Osan Air Base, Republic of Korea, Jan. 25, 2017. The A-10 was prepped for a night flight as part of Exercise Pacific Thunder 17-1, a combat search and rescue exercise. (U.S. Air Force photo by Senior Airman Victor J. Caputo)