U.S. Marines with Company E, Battalion Landing Team, 2nd Battalion 4th Marines, 31st Marine Expeditionary Unit (MEU), conduct a patrol during a vertical assault as part of MEU Exercise (MEUEX), in Combat Town, Okinawa, Japan, Dec 10, 2014. BLT 2/4 is conducting training in preparation of their upcoming spring patrol. (U.S. Marine Corps photo by GySgt Ismael Pena/Released)