Lieutenant Colonel John T. Vaughan is an assault amphibious vehicle officer in the U.S. Marine Corps. Upon graduation from the U.S. Army War College, he will assume duties as deput...view moreLieutenant Colonel John T. Vaughan is an assault amphibious vehicle officer in the U.S. Marine Corps. Upon graduation from the U.S. Army War College, he will assume duties as deputy G-3, 5th Marine Expeditionary Brigade, in Manama, Bahrain.view less