U.S. Marines with Combat Logistics Battalion (CLB)

U.S. Marines with Combat Logistics Battalion (CLB) 26, 26th Marine Expeditionary Unit (MEU), don life preserver units (LPU) in preparation for a mass casualty drill as part of Combined Composite Training Unit Exercise (COMPTUEX) aboard the amphibious transport dock USS New York (LPD 21), Nov. 30, 2017. Combined COMPTUEX is the final event to certify the Iwo Jima Amphibious Ready Group (ARG) and the 26th MEU before a deployment at sea. (U.S. Marine Corps photo by Cpl. Jered T. Stone)