Major General David C. Harris was commissioned a Military Police Corps Officer upon graduation from Officer Candidate School Class OCRC 1-71 at Fort Benning, Georgia, 11 May 1971. His first assignment was as a Platoon Leader with the 471st Military Police Company, District of Columbia National Guard, Washington, D.C. | His subsequent duty assignments include: Recruiting and Retention/Equal Opportunity Officer, HHC 213th Area Support Group, Pennsylvania Army National Guard, Allentown, Pennsylvania; Platoon Leader HHC 213th ASG, PAARNG, Allentown, Pennsylvania; Asst Correctional Officer, HHC 33rd Military Police Battalion, Illinois Army National Guard, Chicago, Illinois; Company Commander 933rd MP Company, ILARNG, Chicago Illinois; S-4 HHC, 33rd MP BN, ILARNG Chicago Illinois; Staff Provast Marshal, State Area Command, ILARNG, Springfield, Illinois; Personnel Management Officer, State Area Command, ILARNG, Springfield, Illinois; Selective Service Officer, Detachment 5, STARC, ILARNG, Springfield, Illinois; Chief Historian, State Area Command, ILARNG, Springfield, Illinois; Plans and Operations Officer, State Area Command, ILARNG, Springfield, Illinois; Commander 44th Support Center, Rear Area Operations Center, ILARNG, Chicago, Illinois; Military Historian State Area Command, ILARNG, Springfield, Illinois; Section Chief Selective Service, STARC, ILARNG, Springfield, Illinois. | At the time of his induction, General Harris was serving as The Adjutant General, State of Illinois, State Area Command, Illinois Army National Guard, Springfield, Illinois.