U.S. Marines with 1st Platoon, Company “F”, 2nd Battalion, 1st Marine Regiment, and 1st Combat Engineer Battalion, attached to the 13th Marine Expeditionary Unit, reinforce a simulated U.S. Embassy against protesters at the Maritime Law Enforcement Training Center, Los Angeles, Calif., during their Certification Exercise (CERTEX), Dec. 8, 2015. Embassy reinforcement is a mission the MEU is specifically trained for. CERTEX will test the unit’s ability to complete each of its mission essential tasks and determine if the unit is prepared to deploy. (U.S. Marine Corps photo by Sgt Hector de Jesus/RELEASED)
