U.S. Marines in Echo Company, 2nd Battalion 4th Marine Regiment, with the Battalion Landing Team, assigned to 31st Marine Expeditionary Unit (MEU), take cover from Oppositional Forces using M16 suppressive fire during a training exercise on Mount Town, Okinawa, Japan, June 4th, 2013.Urban environmental training happens frequently as the 31st MEU is the only continuously forward-deployed MEU and remains the Nations force in readiness in the Asia-Pacific region. (USMC photo by LCpl T.S. Dietrich, 31st MEU Combat Camera)