Marines and sailors with Headquarters Regiment, 2nd Marine Logistics Group, conduct a battle skills exercise in preparation to operate on a much larger scale as part of Large Scale Exercise-15 aboard Marine Corps Air Ground Combat Training Center Twentynine Palms, Calif., Aug. 3-6, 2015. LSE-15 is a combined U.S. Marine Corps, Canadian and British exercise conducted at the Brigade-level, designed to enable live, virtual and constructive training for participating forces.