Sgt. Caleb M. Krieg (left), a squad leader with Company C, 6th Engineer Support Battalion, 4th Marine Logistics Group, Marine Forces Reserve, assists commandos with 131 Commando Squadron Royal Engineers, British army, as they survey a parking lot construction site during exercise Red Dagger at Fort Indiantown Gap, Penn., June 11, 2016. As part of the exercise, the Marines and British commandos worked on various renovation and construction projects around the Army base. 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. Ian Leones/Released)