British Army Lance Cpl Craig L. Williams (left), commando with 131 Commando Squadron Royal Engineers, British Army and U.S. Marine Lance Cpl. Jason P. McWhinnie (right), field radio operator with Engineer Support Company, 6th Engineer Support Battalion, 4th Marine Logistics Group, carry a stack of wooden planks at a construction site during exercise Red Dagger at Fort Indiantown Gap, Pa., May 20, 2018. Exercise Red Dagger is a bilateral training exercise that gives Marines an opportunity to exchange tactics, techniques and procedures as well as build working relationships with their British counterparts. (U.S. Marine Corps photo by Sgt. Melanie Wolf/Released)