Colonel Roberts L. Niner was commissioned an Infantry Officer upon graduation from Officer Candidate School Class 28-67, 15 May 1967. His first duty assignment was as Platoon Leader, Company E, 1st Training Battalion, U.S. Army Advanced Individual Training (AIT) Infantry Brigade, Fort McClellan, Alabama. | His subsequent duty assignments include: Platoon Leader, Company B, 2d Battalion, 39th Infantry, 9th Infantry Division, Vietnam; Assistant Team Chief, Mobile Advisory Team, IV Corps, Military Assistance Command, Vietnam; Assistant Chief, Pay Branch, Fort Jackson, South Carolina; Platoon Leader, Refugee Evacuation Officer, and Public Safety Officer, 416th Civil Affairs Company, Norristown, Pennsylvania; Intelligence Officer and Plans and Operations Officer, 358th Civil Affairs Brigade, Norristown, Pennsylvania; Commander, 416th Civil Affairs Company, Norristown, Pennsylvania; Assistant Chief of Staff, Public Facilities Section, and Assistant Chief of Staff, Plans and Operations, 358th Civil Affairs Brigade, Norristown, Pennsylvania; Chief of Staff, 358th Civil Affairs Brigade, Norristown, Pennsylvania. | As a civilian he was Manager of Industrial Engineering for the Budd Company.