Texas native James M. Logan was the embodiment of the U.S. military's greatest tactical weapon: its Non-Commissioned Officer Corps. Every branch has some kind of saying about NCOs. They're the backbone of the Air Force, they lead the way in the Army, and in the Marine Corps, they wear special swords.  If you want to see how poorly an armed force without NCOs performs in combat, just look at how the Russians are doing in Ukraine. The Heroic Journey of Sgt. James M. Logan Sgt. James M....