U.S. Marine Corps Joint Terminal Attack Controller (JTAC) Sgt. Adonnis Daughenbaugh, assigned to Charlie Company, 1st Battalion, 2nd Marine Regiment, observes a British CH-47 Chinook depart from Patrol Base Boldak, Helmand province, Afghanistan, May 16, 2014. A JTAC is certified service member who is responsible for coordinating combat aircraft engaged in close air support.(Official U.S. Marine Corps photo by Cpl. John A. Martinez Jr. / Released)