Colonel William Hannan is a native of Ohio and was commissioned in the U.S. Army Corps of Engineers in 1997 after graduating from Ohio State University.
Colonel Hannan just transitioned from serving as the Director of Academic Operations for the U.S. Army War College, Carlisle Barracks, Pa. Prior to this assignment he served as the Chief of Staff for the U.S. Army Engineer School and Battalion Commander of the 35th Engineer Battalion, both at Fort Leonard Wood, Mo. He also served as the Chief of Engineer Engagements and Exercises for the Assistant Chief of Staff – Engineer, Headquarters, U.S. Army Pacific at Fort Shafter, HI; Detachment Commander of the 565th Forward Engineer Support Team – Advance, Honolulu District, U.S. Army Corps of the Engineers in Afghanistan and at Fort Shafter, Hawaii; the Battalion Operations and Executive Officer for the 5th Engineer Battalion in Iraq and at Fort Leonard Wood, Mo; a Small Group Leader for the Engineer Captain Career Course at Fort Leonard Wood, Mo; the Brigade Maintenance Officer, Assistant Operations Officer, and Headquarters Company Commander for the 18th Engineer Brigade in Afghanistan and at Campbell Barracks, Heidelberg, Germany; the Geospatial Officer in the Office of the Deputy Chief of Staff – Engineer, Headquarters, U.S. Army Europe at Campbell Barracks, Heidelberg, Germany; Aide de Camp for the Assistant Division Commander – Support, 82nd Airborne Division, and Assistant Brigade Engineer and Platoon Leader in the 307th Engineer Battalion, 82nd Airborne Division at Fort Bragg, N.C.
He holds Bachelor of Science in Civil Engineering from Ohio State University, a Master of Science in Engineering Management from Missouri University of Science and Technology, and a Master of Strategic Studies from the U.S. Army War College. He is a certified Project Management Professional. He is also a graduate of the U.S. Army Command and General Staff College, Combined Arms Staff Service School, Joint Engineer Operations Course, Explosive Ordnance Clearance Agent Course, Jump Master Course, Engineer Officer Advance Course and Engineer Officer Basic Course.
His awards and decorations include the Bronze Star Medal, Meritorious Service Medal, Army Commendation Medal, Army Achievement Medal, National Defense Service Medal, Armed Forces Expeditionary Medal, Afghanistan Campaign Medal, Iraqi Campaign Medal, Global War on Terror Service Medal, Overseas Service Ribbon, NATO Medal, Meritorious Unit Award, Combat Action Badge, Master Parachutist Badge, Sapper Tab, and Ranger Tab.