Inputting Grid Coordinates
Air Force Tech. Sgt. Erik Rosenberger inputs grid coordinates into a Blue Force Tracker System during a combat patrol exercise on Camp Mad Bull at Joint Base Elmendorf-Richardson, Alaska, July 12, 2018. Rosenberger is assigned to the Wisconsin Air National Guard’s 128th Security Forces Squadron, 128th Air Refueling Wing. Air National Guard photo by Staff Sgt. Morgan R. Lipinski