U.S. Army Pfc. Abbigail Carey, Charlie Company, 1st Battalion, 43rd Air Defense Artillery (ADA) Battalion, 11th ADA Brigade patriot missile maintainer and operator, acts as a ground guide while performing patriot missile readiness drills at Al Udeid Air Base, Qatar, April 16, 2019. Soldiers of the 1-43rd ADA Battalion provide the installation with an air defense capability, protecting personnel, assets and operations here from potential air threats. (U.S. Air Force photo by Tech. Sgt. Christopher Hubenthal)