U.S. Air Force Staff Sgt. Mitchell Chappelle, 961st Aircraft Maintenance Unit radar technician, positions a fire extinguisher in front of an E-3 Sentry from the 961st Airborne Air Control Squadron June 8, 2017, at Kadena Air Base, Japan. The Sentry has rotating radar with a range of more than 250 miles, providing early warning and detection for missions. (U.S. Air Force photo by Senior Airman John Linzmeier)