Colonel William J. Dennis was commissioned an Infantry Officer upon graduation from Officer Candidate School 9 December 1942, class number 121. His first duty assignment was as Adj, 300th Infantry, Fort Benning, Georgia. | His subsequent duty assignments include: Assistant G-3, Headquarters 3d Army, Fort Sam Houston, Texas; OIC-War Room, Headquarters 3d Army Europe; Asst G-3, Headquarters, 1st Army, Gov Island, New York; Student, Inf Off Advanced Course, Fort Benning, Georgia; Company Commander and Regiment S-3, 23 Inf,2d Div, Fort Lewis, Washington; Student, C&GSC; Bn S-3, 3d Bn, 33d Inf, Canal Zone; Asst G-3, Headquarters USARFANT, Fort Brooke, Pureto Rico; Asst G-3, DA; Regiment Ex O & CO, 19th Inf, 24 Div, Korea; CO, 2d BG, 4th Cav, 19th Inf, 24 Div & 1st Cav Div, Korea; Experimentation Team Project Chief, Headquarters, USA Combat Develop Exper Cent, Fort Ord, California; SGS, USA Combat Develop Exper Cent, Fort Ord, California; Asst Insp Gen, Headquarters USAR PAC, Fort Shafter, Hawaii; Inspector General, Comp Zama, Japan. | His awards and decorations include: Legion of Merit, Bronze Star Medal, ACM.