Staff Sgt. Christopher D'Amata, and Tech. Sgt. Benjamin Hammond, 819th RED HORSE Squadron engineering technicians, use a survey-grade global positioning satellite device to plot the locations where structures will be built during an exercise May 3, 2021, at Malmstrom Air Force Base, Mont. During the exercise, squadron members built sleeping tents, shower facilities and other structures that would be necessary for a bare base in a remote location. (U.S. Air Force photo by Heather Heiney)