Division West Chief of Staff


COL Gregory Reilly assumed duties as the Chief of Staff for First Army Division West in June 2013. A native of Sacramento California, COL Reilly was commissioned as a Distinguished Military Graduate into Artillery Branch from the ROTC Department of California State University, Sacramento, where he earned a degree in Economics. After completing Ranger School he was assigned to 1st Squadron, 1st Cavalry Squadron, where he transferred his branch to Armor. His initial assignments included Fire Support Team Chief, Cavalry Troop Executive Officer and Squadron Logistics Officer.  

He then served a tour in 1st Cavalry Division from June 1990 to June 1994, deploying to Desert Shield and Desert Storm, then as a Company Commander in 1-5 Cavalry, 1-8 Cavalry and HHC 2-12 Cavalry. After Company Command, he served as Assistant Professor of Military Science at Claremont McKenna College in Southern California.

In July of 1996, he attended the Army’s Command and General Staff Officer’s Course followed by attendance at the School of Advanced Military Studies.

He was then assigned to 1st Armored Division in Bad Kreuznach, Germany, serving as the Division Plans Officer followed by Chief of Operations from June 1998 through February of 2000, having served five months during this period in Bosnia. He was then assigned as the Operations Officer of 1st Brigade, 1-37 Armor in Friedberg, Germany, serving a six-month tour in Support of KFOR II in Kosovo. In June of 2001, he assumed duties as the 1st Brigade, 1st Armored Division Operations officer, followed by an assignment as the Brigade Executive Officer from June 2002 to June 2003. He deployed with the Brigade to Iraq as the Executive Officer before assuming Command of 1st Squadron, 3rd Armored Cavalry Regiment in Al Qaim, Iraq in July of 2003. He commanded the Squadron during nine months of OIF I, serving in Al Anbar Province, and again during OIF III from February 05 to February 06 conducting operations in South Baghdad, Tal Afar, Sinjar and along the border in Ninewa Province. He also served a short tour in Afghanistan from June – September 2008 as an operational planner for ISAF. A graduate from the Naval War College at Newport, RI he also served as a professor teaching Joint Military Operations. Prior to being assigned to Division West, he commanded Joint Task Force Bravo, Honduras and served as the Chief of the Southern Commander’s Action Group.


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