CAMP HANSEN, Okinawa (Dec. 6, 2022) U.S. Navy hospital corpsmen with the 31st Marine Expeditionary Unit, conducts in flight casualty care during an en route care exercise on Camp Hansen, Okinawa, Japan, Dec. 8, 2022. Casualty evacuation exercises prepares corpsmen for extracting injured personnel while out at sea. The 31st MEU, the Marine Corps’ only continuously forward-deployed MEU, provides a flexible and lethal force ready to perform a wide range of military operations as the premier crisis response force in the Indo-Pacific region. (U.S. Marine Corps photo by Cpl. Christopher W. England)