Master Sgt. Caleb Watkins, left, and Tech. Sgt. Jaime Farmer, both aircraft armament systems technicians assigned to the 131st Aircraft Maintenance Squadron, prep a munitions handling unit trailer for loading procedures at Whiteman Air Force Base, Missouri, April 14, 2016. Watkins and Farmer are two of three 131st AMXS drill-status guardsmen who loaded weapons to the B-2 Spirit during Exercise Constant Vigilance 16. (U.S. Air Force photo by Airman 1st Class Keenan Berry)