Gen. Zinni was formerly Commander-in-Chief, U.S. Central Command. While in the Marine Corps he held numerous command and staff assignments that include platoon, company, battalion, regimental, Marine expeditionary unit, and Marine expeditionary force command. His staff assignments included service on battalion, regimental, division, base, and service staffs in operations, training, special operations, counterterrorism, and manpower billets. Gen. Zinni most recently served as the United States Special Envoy to the Middle East.