A U.S. Air Force Airman from the 726th Air Control Squadron scans the perimeter of the Mobile Operating Air Base (MOAB) during Hardrock Exercise 19-2, July 16, 2019, at Mountain Home Air Base, Idaho. The exercise was in a simulated deployed location where the base was built from the ground up and took control of the airspace. (U.S. Air Force photo by Airman 1st Class Andrew Kobialka)