Airman 1st Class Shirley Ruiz, 4th Aircraft Maintenance Squadron avionics technician, places covers on an F-15E Strike Eagle, Feb. 1, 2016, at Seymour Johnson Air Force Base, North Carolina. Exercise Coronet Warrior 16-01 participants responded to random injects that tested their deployment skills. (U.S. Air Force photo/Airman Shawna L. Keyes)