U.S. Navy Petty Officer 1st Class Brandon D. Flake, hospital corpsman with Engineer Support Company, 6th Engineer Support Battalion, 4th Marine Logistics Group, shows the Marines with 6th ESB, 4th MLG, and the British commando’s with 131 Commando Squadron Royal Engineers, British Army, the damage a nail gun could cause if it is not used with caution at a construction site during exercise Red Dagger at Fort Indiantown Gap, Pa., May 19, 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)