ARTA TRAINING RANGE, Djibouti (Oct. 6, 2015) U.S. Marine Gunnery Sgt. Dragos Coca engages targets during a desert survival and tactics course. Coca is a platoon sergeant with Delta Company, 1st Light Armored Reconnaissance Detachment, 15th Marine Expeditionary Unit. Elements of the 15th MEU trained with the 5th Overseas Combined Arms Regiment (RIAOM) in Djibouti from Sept. 21 to Oct. 7 in order to improve interoperability between the MEU and the French military. (U.S. Marine Corps photo by Sgt. Steve H. Lopez/Released)