The Marine Corps says it successfully demonstrated its new robotically controlled, ship-killing ground vehicle during Large Scale Exercise 21, launching a pair of cruise missiles from an unmanned tactical vehicle in Hawaii and sinking an at-sea target, a significant development for the service's No. 1 ground vehicle modernization priority. On Aug. 15, the Navy/Marine Corps Expeditionary Ship Interdiction System (NMESIS) hit its target as part of the major exercise, allowing participating forces to practice maneuvering the system and engineers working...