Lieutenant Colonel Robert A.Guenthner was commissioned an Infantry Officer upon graduation from Officer Candidate School, 2 June 1942, class number 16. His first duty assignment was as Platoon Leader, Company F, 180 Infantry, M.T.O. | His subsequent duty assignments include: Company Commander, Co F, 180 Infantry, M.T.O.; S-3, 2d Bn, 180 Inf, M.T.O.; Executive Officer, 1st Bn, 1st Stu Regiment, Fort Benning, Georgia; Assistant Sp Sv O, Headquarters, 8th Army, Asiatic, Pacific; PMS&T, 1178 ASU, ROTC, Gloucester H.S., Gloucester Massachusetts; PMS&T, ROTC Instructor Grp, ASU, ROTC, Gloucester, Massachusetts; Operation and Training Staff Officer, Army Sec MAAG; AC/S G-3, 8th Inf Div, Fort Carson, Colorado; Battalion Commander, 1st Bn, 13th Inf, Fort Carson, Colorado; Assistant G-3, (Executive Officer), Headquarters, VII Corps, USAREUR; Assistant G-3 and Executive Officer, Headquarters, VII Corps, USAREUR; Com Chmn, USAIS, Chmn Rifle Com, Weapons Dept; Executive Officer Department, USAIS, XO Wpns Dept. | Lieutenant Colonel Guenthner's awards and decorations include: the Silver Star, Purple Heart, Combat Infantryman Badge and the Army Commendation Ribbon w/1 Oak Leaf Cluster.