U.S. Marine Lance Cpl. Thang Q. Duong, squad leader with Headquarters and Service Company, 6th Engineer Support Battalion, 4th Marine Logistics Group, measures a piece of plywood at a construction site during exercise Red Dagger at Fort Indiantown Gap, Pa., May 23, 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)