Lieutenant General William Hardin Harrison was commissioned an Infantry Officer upon graduation from Officer Candidate School 27 October 1955. His first duty assignment was as Platoon Leader, F Company, 511 Airborne Infantry 11th Airborne, Fort Campbell, Kentucky. | His subsequent duty assignments include: Platoon Leader, F Company, 511 Airborne Infantry, 11th Airborne, Augsburg, Germany; Replacement Det Commander, 101st Airborne Division, 506th Airborne Infantry, Fort Campbell, Kentucky; S3 Airborne, 101st Airborne Division, 506 Airborne Infantry, Fort Campbell, Kentucky; Company Commander, 101st Airborne Division, 506 Airborne Infantry, Fort Campbell, Kentucky; S3, Company Commander, 34th Infantry, 7th Infantry Division, Korea; Aide-de-Camp, XIV Corps Headquarters, Minneapolis, Minnesota; Aide-de-Camp, Headquarters Allied Forces Southern Europe, Naples, Italy; District Advisor, Regimental Assistant to Deputy, II Corps, Vietnam; Staff Officer, J3, Office Joint Chiefs of Staff, Washington, D.C.; Battalion Commander, 2d Battalion,48th Infantry, 3d Armd Division, Germany; AC of Staff-G1, 3d Armd Division Headquarters, Germany; Division Chief, The Infantry School, Fort Benning, Georgia; G3 Army Section, ARMISH-MAAG, Tehran, Iran. | Military schools attended include: United States Army War College, Infantry Advanced Course, Command and General Staff College. | His awards and decorations include: Meritorious Service Medal, JSCM, ARCOM-2, Bronze Star Medal, AVNCM, National Defense Service Medal, Vietnam Service Medal, Foreign Awards, Sr Para, CIB, Joint Chiefs of Staff Identification Badge.