Colonel Thomas L. Trudeau was commissioned an Infantry Officer upon graduation from Officer Candidate School Class 77-53, 25 November 1953. His first duty assignment was as Field Medical Assistant, 82nd Reconnaissance, Germany. | His subsequent duty assignment include:  S-2/S-3, 54th Medical Group, Fort Benning, Georgia; Commander 542d Medical Group, Fort Benning, Georgia; S-1, 428th Medical Battalion, Fort Benning, Georgia; Administrative Officer, 44th Mobile Army Surgical Hospital, Korea; S-1. 168th Medical Battalion; Training Officer, Headquarters, 4th Army Hospital, Fort Sam Houston, Texas; Personnel Officer, Brooke Army Medical Center, Fort Sam Houston, Texas; Chief, Enlisted Personnel Branch, Headquarters, US Medical Command, Germany; S-1 44th Medical Brigade, Vietnam; Chief, Personnel Division, Armed Forces Institute of  Pathology, Washington, D.C.; Chief, Personnel Branch, Headquarters, 6th U.S. Army; Headquarters COMDT/Protocol Officer/Secretary of the General Staff/Chief, Military Personnel Division, Headquarters, U.S. Army Health Services Command, Fort Sam Houston, Texas; Commander 44th Medical Brigade, Fort Bragg, North Carolina. | His awards and decorations include: Legion of Merit, Meritorious Service Medal, Joint Service Commendation Medal, Army Commendation Medal (1 Oak Leaf Cluster).