A U.S. Air Force crew chief assigned to the 112th Fighter Squadron, Toledo Air National Guard Base, Ohio, communicates instructions to his pilot May 5, 2015, during RED FLAG-Alaska (RF-A) 15-2, at Eielson Air Force Base, Alaska. The work completed by crew chiefs provides mission-capable aircraft for pilots so they can provide air support, serving a vital role in the overall RF-A mission. (U.S. Air Force photo by Tech. Sgt. Miguel Lara III/Released)