(From left) U.S. Air Force Staff Sgt. Joshua Shaffer, 1st Operations Support Squadron tower watch supervisor, and Senior Airman Richard Smith, 1st OSS air traffic controller, brief their crew before starting the evening shift at Joint Base Langley-Eustis, Va., Sept. 26, 2017. Shaffer trained Smith on most of his tasks starting from local, which is the person in the tower talking to the pilot, all the way to today, where he’s training him to be an on watch supervisor. (U.S. Air Force photo by Airman 1st Class Alexandra Singer)