U.S. Secretary of Defense Dr. Mark T. Esper meets with Soldiers assigned to the 94th Army Air and Missile Defense Command’s Task Force Talon who maintain and operate the Terminal High Altitude Air Defense (THAAD) system at Andersen Air Force Base, Guam Aug. 29 2020. The primary purpose of the THAAD system is to defend against missile attacks. The system consists of a launcher, interceptors, fire control and communications equipment, and the AN/TPY-2 tracking radar. (U.S. Air Force photo by Senior Airman Amir Young)