Colonel Andrew P. Sullivan was commissioned an Infantry Officer upon graduation from Officer Candidate School, 14 May 1993. His first duty assignment was as a Platoon Leader, D Company, 1-6 Infantry, 3rd Infantry Division, Vilseck, Germany. | His subsequent duty assignments include: Executive Officer, C Company, 2-2 Infantry, 1st Infantry Division, Vilseck, Germany; Operations Officer, 1-11 Infantry, Fort Benning, Georgia; Future Operations Officer, Military Police Activity, Fort Benning, Georgia; Company Commander, 209th MP Detachment, Fort Benning, Georgia; Law Enforcement Operations Officer, Military Police Activity, Fort Benning, Georgia; Executive Officer, Military Police Activity, Fort Benning, Georgia; Plans Officer, 3rd Infantry Division, Fort Stewart, Georgia; Plans Officer, 3rd Infantry Division, Iraq; Deputy Provost Marshal, 3rd Infantry Division, Iraq; Deputy Provost Marshal, 3rd Infantry Division, Fort Steward, Georgia; Battalion Executive Officer, Arctic MP Battalion, Fort Richardson, Alaska; Brigade S-3, 3rd Maneuver Enhancement Brigade, Fort Richardson, Alaska; Chief of Readiness and Training, Office of the Provost Marshal, Military District of Washington/Joint Forces Headquarters National Capitol Region, Fort McNair, Washington, D.C.; Battalion Commander, Washington CID Battalion, 3rd Military Police Group (CID), Joint Base Myer-Henderson Hall, Virginia; Director Security Force Assistance Integration Cell, Combined Joint Interagency Task Force 435, Afghanistan; Provost Marshal and Director G-34, G-3/5/7, United States Army Training and Doctrine Command, Fort Eustis, Virginia. | His military education includes: Infantry Basic Officer Leader Course, Airborne School, Bradley Infantry Fighting Vehicle Course, Infantry Maneuver Captains Career Course, Special Reaction Team Training, Combined Arms Service Staff School, Intermediate Level Education, United States Army War College.