U.S. Marines Lance Cpl. Jason P. McWhinnie (left), field radio operator with Engineer Support Company, 6th Engineer Support Battalion, 4th Marine Logistics Group, and Private First Class Austin T. Roberts (right), combat engineer with Bridge Company C, 6th ESB, 4th MLG, gather and stack 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)