The 84th Training Command ("Railsplitters") is a formation of the United States Army. During World War I it was designated the 84th Division, American Expeditionary Forces; during World War II it was known as the 84th Infantry Division. From 1946 to 1952, the division was a part of the United States Army Reserve as the 84th Airborne Division. In 1959, the division was reorganized and redesignated once more as the 84th Division. The division was headquartered in Milwaukee in command of over 4,100 soldiers divided into eight brigades—including an ROTC brigade—spread throughout seven states. Changes to the U.S. Army Reserve organizations from 2005 until 2007 redesigned the unit as the 84th Training Command (Leader Readiness) and it was paired with the Army Reserve Readiness Training Center (ARRTC). The flag resided at Fort McCoy, Wisconsin. As a result of Base Realignment and Closure (BRAC) throughout the Army, the ARRTC was moved to Fort Knox, Kentucky. The 84th Training Command (LR) underwent a command-directed move to Fort Knox, Kentucky in advance of the ARRTC in September 2008. Since the move, the 84th Training Command and ARRTC split, leaving the ARRTC with leader readiness and training support. The 84th Training Command was re-designated once again to 84th Training Command (Unit Readiness). In September 2010, the 84th was renamed 84th Training Command and began reorganization. The 84th mission currently supports three numbered and three named training divisions – The 78th Training Division (Ft. Dix, NJ), the 86th Training Division (Ft. McCoy, WI), and the 91st Training Division (Ft. Hunter Liggett, CA), Atlantic Training Division (Ft. Dix, NJ), Great Lakes Training Division (Arlington Heights, IL), Pacific Training Division (Camp Parks, Dublin, CA) Tradition has it that the division traces its lineage to the Illinois militia company in which a young Captain Abraham Lincoln served during the Black Hawk War of 1832. The division patch was selected to honor this legacy and the division's origin in Illinois. For this reason, the alternative nickname of "Lincoln County" Division" has been used to denote the 84th. World War I The division was activated in September 1917 at Camp Taylor, Kentucky. It was initially made up of enlisted draftees from Indiana and Kentucky (who chose the formation's distinctive patch and nickname), with a cadre of Regular Army, Officers Reserve Corps, and National Army officers. Later groups of enlisted men assigned to the division to replace men transferred to other