U.S. Marine Private First Class Jeffrey Beasley (top), combat engineer with Engineer Company C, 6th Engineer Support Battalion, 4th Marine Logistics Group, makes markings on a roof frame as British Army Spr. William Staniforth, commando with 131 Commando Squadron Royal Engineers, British Army, holds the ladder in place 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)