TWENTYNINE PALMS, CA -- The Marine Corps has finished revising Expeditionary Force 21, its capstone operating concept, and the document is now awaiting Commandant Gen. Robert Neller's signature, according to a top general. "Forget the old EF 21, because the refresh is almost completely different," Brig. Gen. Julian Alford said during an Aug. 1 interview here at the Marine Corps Air Ground Combat Center. The revision took about nine months to complete, according to Alford, and the updated concept has...