Private 2nd Class Brian Madigan, Bravo Battery, 1st Battalion, 43rd Air Defense Artillery Regiment, performs a system validation on a Patriot launcher April 24, 2019, on Al Dhafra Air Base, United Arab Emirates. Certified crews maintain 24-hour coverage to ensure proper maintenance and performance of the Patriot missile system protecting the base. (U.S. Air Force photo by Tech. Sgt. Jocelyn A. Ford)