Ryan D. McCarthy, acting Secretary of the Army, visits the 4th Battalion, 3rd Air Defense Artillery Regiment, Sept. 20, 2019, at the Patriot site on Al Dhafra Air Base, United Arab Emirates. McCarthy participated in a site tour and overview of the Patriot battery capabilities and defensive support to ADAB with U.S. Army soldiers assigned to the 4-3 ADA. (U.S. Air Force photo by Tech. Sgt. Jocelyn A. Ford)