Private First Class Miguel Ramirez, a radio operator with Combat Logistics Battalion 31, 31st Marine Expeditionary Unit, stands guard outside the screening station of the evacuation control center during a multilateral non-combatant evacuation operation as a part of Cobra Gold 2013 here, Feb. 17. Cobra Gold is the largest multinational exercise in the Asia-Pacific and helps develop the ability of all participants to effectively conduct humanitarian assistance and disaster relief operations. The 31st MEU is the only continuously forward-deployed MEU and is the Marine Corps’ force in readiness in the Asia-Pacific region.