PORTSMOUTH, VA -- At the end of the month both the Marine Corps commandant and the chief of naval operations will sign off on a concept focused on littoral operations in a contested environment. Right now, the document is making its final circulation through all of the three-star generals, Lt. Gen. Robert Walsh, deputy commandant for combat development and integration, told reporters here Oct. 11. The new concept is the result of tasking from Cooperative Strategy '21, which is a...