Lieutenant Colonel Robert G. Miller was commissioned an Infantry Officer upon graduation from Officer Candidate School on 13 November 1942, class number 100.  His first duty assignment was as Weapons Platoon Leader, Company L, 389th Infantry, Camp Breckenridge, Kentucky. | His subsequent duty assignment include:  Platoon Leader, Truck Battalion, Africa and Corsica; Rifle Company Executive Officer, 3d Division, Camp Campbell, Kentucky; Platoon Leader and Rifle Company Executive Officer, 2d Bn, 351st Inf; Professor of Military Science & Tactics, Chattanooga, Tennessee; G-2 Operations, Headquarters Eighth Army, Korea; G-3 Section, Headquarters Ryukyu Command, Okinawa; Battalion Executive Officer, 3d Bn, 75th Inf, Okinawa; Battalion Executive Officer, Battle Group S-3, 1st Inf Div, Fort Riley, Kansas; Advisor to Vietnamese Regiments at Kontum & Dak, MAAG, Vietnam; Allied Liaison Officer at The Infantry School, Command & General Staff College, Fort Leavenworth, Kansas; Ranger Department, The Infantry School; Command Historian, Commander in Chief Pacific, STAFF CINCPAC, Camp H.M. Smith, Hawaii.