Four U.S. Air Force A-10 Thunderbolt II aircraft assigned to the 25th Fighter Squadron taxi down the runway at Osan Air Base in South Korea during a mass launch as part of the Beverly Midnight 14-4 Sept. 17, 2014.
Beverly Midnight is an operational readiness exercise sponsored by the 8th Fighter Wing that is designed to evaluate and measure the ability of installations to execute their combat mission in a chemical environment by creating realistic scenarios for exercise evaluations. (DoD photo by Staff Sgt. Jake Barreiro, U.S. Air Force/Released). Original public domain image from Flickr