MARINE CORPS BASE TWENTYNINE PALMS, CA -- The Marine Corps' experimental battalion, training with novel concepts and off-the-shelf technology, wrapped up urban assault and combined-fire exercises here last week as it prepares to deploy to the Asia-Pacific region. The third battalion from the Fifth Marine division, based out of Camp Pendleton, CA, completed its final exercise here on Nov. 15 by conducting a live-fire, combined arms assault on a notional enemy. Defense Secretary Ash Carter was here observing the final...