Kansas Air National Guard Staff Sgt. Brandon Arpan, 284th Air Support Operations Squadron assistant A-flight chief, observes the approach of a B-1 bomber during a close air support exercise in a training area near Alzada, Mont., July 20, 2015. During the exercise, part of Secretary of the Air Force Deborah Lee James’ visit to Ellsworth Air Force Base, S.D., Arpan called in a show of force intended to intimidate enemy personnel while simultaneously providing friendly forces an opportunity to withdrawal from dangerous areas. (U.S. Air Force photo by Senior Airman Rebecca Imwalle/Released)