An Airman preflight checks a C-130 Hercules during Air and Missile Defense Exercise 21-1 in the U.S. Central Command area of responsibility, Oct. 22, 2020. AMDEX evaluates and validates U.S. Central Command bases’ readiness, mission assurance, command, control and communication response to an emergency. (U.S. Air Force photo by Staff Sgt. Sean Carnes)