KADENA AIR FORCE BASE, Okinawa (Nov. 2, 2021) U.S. Navy Lt. Springli Payeur, a medical officer assigned to 3d Medical Battalion, 3d Marine Logistics Group, tends to a simulated critical care patient during Remote Island Disaster Exercise 2021, on Kadena Air Force Base, Okinawa, Japan, Nov. 2, 2021. RIDEX is a humanitarian assistance/disaster relief exercise between U.S. and Japan Forces that enhances the bilateral capabilities for casualty rescue operations and expeditionary medical assistance in the event of sudden disasters. (U.S. Marine Corps photo by Lance Cpl. Madison Santamaria)