An Airman assigned to the 14th Weapons Squadron at Hurlburt Field, Florida, walks on a CV-22 Osprey helicopter prior to a training mission for the United States Air Force Weapons School (USAFWS) at Nellis Air Force Base, Nevada, Dec. 10, 2017. At the conclusion of nearly 400 hours of graduate-level academics and combat training missions, the USAFWS course climaxes with a weeklong exercise, known as Weapons School Integration. (U.S. Air Force photo by Senior Airman Kevin Tanenbaum/Released)