Marines with Echo Company, Battalion Landing Team,

Marines with Echo Company, Battalion Landing Team, 2nd Battalion, 5th Marines, move through a flooded trench during an endurance course at Jungle Warfare Training Center, Camp Gonsalves, Okinawa, Japan, July 30, 2018. The Marines trained at JWTC to prepare for an upcoming patrol of the Indo-Pacific region as the Ground Combat Element for the 31st Marine Expeditionary Unit. The 31st MEU, the Marine Corps’ only continuously forward-deployed MEU, provides a flexible force ready to perform a wide-range of military operations. (U.S. Marine Corps photo by Lance Cpl. Matt Navarra/Released)