U.S. Air Force 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 (MHU)-204 trailer for loading procedures at Whiteman Air Force Base, Mo., April 14, 2016, Watkins and Farmer are two of three 131st AMXS drill-status guardsmen who loaded weapons to the B-2 Spirit during an exercise for the time during Constant Vigilance 16. (U.S. Air Force photo by Airman 1st Class Keenan Berry)