Colonel William J. Clerkin was commissioned as a Medical Service Corps Officer upon graduation from Officer Candidate School class 4-85, 23 August 1985. His first duty assignment was as a Medical Platoon Leader with the 3/41st Mechanized Infantry Battalion, 2nd Armor Division, Fort Hood, Texas. | His subsequent duty assignments include: Division Medical Supply Officer, and Assistant S-1, DISCOM, 2nd Armored Division, Fort Hood Texas; S-4, and later Company Commander, 47th Field Hospital, Fort Sill, OklahomaK; S-4, 502nd Mobile Army Surgical Hospital, United Nations Protective Forces (UNPROFOR), Zagreb, Croatia; S-4, 212th Mobile Army Surgical Hospital, Wiesbaden, Germany; S-3 4213th Hospital, Malone, NY; 6th Medical Logistics Management Center, Fort Detrick, Maryland; Medical Logistics Officer, 5th Army, Fort Sam Houston, Texas; Medical Logistics Officer, Joint Forces Command, Norfolk, Virginia; Assistant J-4, Task Force Ramadi, Ramadi, Iraq; Commander, 424th Multifunctional Medical Battalion, Newtown Square, Pennsylvania; Deputy Commander, Joint Intelligence Coordination Staff, Washington, D.C. | Colonel Clerkin is a graduate of the Army Medical Department (AMEDD) Officer Basic Course, AMEDD Logistics Management Course, Army Logistics Officer Course, Army Medical Department Officer Advanced Course, Airborne School, Combined Arms and Services Staff School and Command and General Staff School. | His military awards include the Bronze Star Medal, Joint Service Commendation Medal, Army Commendation Medal (5 Oak Leaf Cluster), Army Achievement Medical (4 Oak Leaf Cluster), Joint Meritorious Unit Award, Meritorious Unit Commendation, Army Reserve Components Achievement Medal, National Defense Service Medal with Bronze Star, South West Asia Service Medal with 2 Bronze Service Stars, Global War on Terrorism Service Medal, Armed Forces Service Medal, Iraq Campaign Medal with Campaign Star, Army Service Ribbon, Overseas Service Ribbon, Armed Forces Reserve Medal with M Device (2nd Award), U.N. Medal, Kuwait Liberation Medal (Saudi Arabia), Kuwait Liberation Medal (Kuwait), Parachutist Badge, and the Expert Field Medical Badge.