U.S. Coast Guard Aviation Maintenance Technician Third Class Christian Brewer refills his oxygen tank during smoke and fume training on the HC-130J Hercules near Air Station Barbers Point, Oahu, Hawaii, Aug. 15, 2024. Coast Guard aircrew members are trained in aviation skills, search and rescue operations, maritime law enforcement, and emergency response. (U.S. Air National Guard photo by Staff Sgt. Joseph Pagan).