Tech. Sgt. Benjamin Heard, 60th Operations Squadron survival, evasion, resistance and escape training noncommissioned officer in charge gives last minute instruction on communication devices before a SERE training exercise for aircrew members Aug. 5, 2019 in a remote area near Travis Air Force Base, Calif. SERE instructors conduct the training to improve aircrew’s skill sets and update them on new techniques, procedures and technologies. (U.S. Air Force photo by Heide Couch)