Matt M. Matthews joined the Combat Studies Institute in July 2005 after working for 16 years as a member of the World Class Opposing Force (OPFOR) for the Battle Command Training Program in Fort Leavenworth, Kansas. Mr. Matthews graduated from Kansas State University in 1986 with a B.S. in History. HE served as an Infantry enlisted man in the Regular Army from 1977 to 1981; a Cavalry officer in the US Army Reserve from 1983 to 1986; and as an Armor officer in the Kansas Army National Guard from 1986 to 1991. Mr. Matthews is the author of CSI Press publications "The Posse Comitatus Act and the