CAMP HENSEN, Okinawa (May 17, 2022) U.S. Marines with the 31st Marine Expeditionary Unit learn how to use the noncombatant evacuation (NEO) tracking system during a NEO class on Camp Hansen, Okinawa, Japan, May 17, 2022. A NEO is the evacuation of civilians and nonessential military personnel from danger in an overseas country to a designated safe haven. 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 premiere crisis response force in the Indo-Pacific region. (U.S. Marine Corps photo by Lance Cpl. Kira Ducato)