U.S. Air Force Tech. Sgt. Maison Babiera, 18th Medical Support Squadron medical maintenance non-commissioned officer in charge, teaches local medical professional about preventative medical equipment maintenance during Pacific Angel (PACANGEL) 16-3 in Jaffna, Sri Lanka, Aug. 14, 2016. PACANGEL is a total force, joint and combined humanitarian assistance/civil military operation led by U.S. Pacific Air Forces. Before PACANGEL started, the U.S. Air Force hosted multiple subject matter expert exchanges for crowd control, physical therapy, casualty evacuation simulations and biomedical equipment. (U.S. Air Force photo by Senior Airman Brittany A. Chase)