U.S. Army Pvt. Mason Hage (left), 1st Battalion, 43rd Air Defense Artillery regiment, 11th ADA Brigade patriot fire control enhanced operator and maintainer, helps U.S. Air Force Staff Sgt. Rikki Sechrist (right), 379th Expeditionary Civil Engineer Squadron emergency management Chemical, Biological, Radiological, Nuclear, and high yield explosives specialist, adjust Mission Oriented Protective Posture gear during a joint decontamination exercise Feb. 22, 2019, at Al Udeid Air Base, Qatar. The event was the conclusion of a four phase training curriculum. (U.S. Air Force photo by Tech. Sgt. Christopher Hubenthal)