The Marine Corps is planning on forming low-signature but lethal and mobile stand-in forces to be the leading edge of the United States' forward-deployed forces, according to a new guidance Marine Corps Commandant Gen. David Berger published Wednesday. The document, " A Concept for Stand-in Forces ," states the stand-in forces concept is part of the service's wider Force Design 2030 efforts to pivot the Marine Corps away from ground-based conflict in the Middle East to a potential maritime conflict...