Master Sgt. Mason Lucas, a test measurement and diagnostic equipment quality manager assigned to the 4th Component Maintenance Squadron at Seymour Johnson Air Force Base, North Carolina, carries power cables out of a integrated unit (INU) tactical shelter May 6, 2019, at Offutt Air Force Base, Nebraska. The INU is the main scheduling unit for the Rapid Assistance Support for Calibration unit brought in to reestablish the base’s capability to calibrate equipment, which was lost in the flood. (U.S. Air Force photo by L. Cunningham)