U.S. Air Force pararescuemen assigned to the 48th Rescue Squadron at Davis-Monthan Air Force Base, Ariz., conduct exercise scenarios during Razor’s Edge, a two-week long pre-deployment exercise, at Parker, Ariz., April 12, 2019. Practicing real-world scenarios helps pararescuemen execute their core function of personnel recovery in austere environments downrange. (U.S. Air Force photo by Airman 1st Class Kristine Legate)