Staff Sgt. Hunter Eckwall, 20th Civil Engineer Squadron explosive ordnance disposal technician, enters a booby-trapped building during field training exercise Operation Guillotine at Seymour Johnson Air Force Base, North Carolina, July 27, 2021. Before entering the building Eckwall looked for trip wire and improvised explosive devices. (U.S. Air Force photo illustration by Senior Airman Kimberly Barrera)