UNITED STATES ARMY
UEx BRIGADE COMBAT TEAMS & MODULAR BRIGADES  • 2006-16
Under the Army Transformation Plan that began to be implemented in 2006, combat divisions would no longer possess a fixed organization. Instead they became headquarters units (in Army parlance Unit of Employment, X or UEx) capable of controlling up to four modular brigade combat teams (BCTs). The division headquarters and headquarters company was enlarged into a battalion with enhanced command and control, sustainment and security capabilities, while the division artillery and division support command headquarters were abolished. The field artillery and support (logistics) battalions they once controlled became organic to the modular combat brigades, of which there were two types: the Heavy Brigade Combat Team (HBCT), and the Infantry Brigade Combat Team (IBCT). In their initial configuration the HBCT and the IBCT had three maneuver elements: a reconnaissance, surveillance and target acquisition (RSTA) cavalry squadron and two combined arms battalions (for the HBCT) or infantry battalions (for the IBCT). The brigade support battalion (BSB) had the usual supply, maintenance and medical companies, plus one forward support company for each combat battalion. Heavy Brigade Combat Teams were renamed Armored Brigade Combat Teams (ABCT) in 2012. The Stryker Brigade Combat Team (SBCT), which was designed prior to the advent of the UEx scheme, had a different organization: three mechanized infantry battalions, a cavalry squadron (RSTA), a three-battery FA battalion, separate antiarmor, combat engineer, signal and military intelligence companies grouped under the brigade HHC, and no forward support companies in the brigade support battalion. The UEx concept included a new division headquarters and headquarters battalion, consisting initially of four companies. In 2017, however, two of the companies were merged, reducing the total to three. Of the separate modular brigades, fires brigades have been redesignated as division artillery (DIVARTY) headquarters or separate field artillery brigades; sustainment brigades have been redesignated as division sustainment brigades, and battlefield surveillance brigades have been reorganized and redesignated as expeditionary military intelligence brigades. Credit: I am grateful to Dave Fowler, who kindly provided much of the organizational information on which this section is based. See also US Army Divisions (Current Organization) and US Army Modular Brigades.
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Headquarters & Headquarters Battalion  •  1st Infantry Division  •  2006-17
1st Heavy Brigade Combat Team 1st Cavalry Division  •  2006-14	2nd Heavy Brigade Combat Team 1st Armored Division  •  2006-14	30th Heavy Brigade Combat Team North Carolina Army National Guard  •  2006-14
1st Stryker Brigade Combat Team 25th Infantry Division  •  2006-14	3rd Infantry Brigade Combat Team 1st Armored Division  •  2006-14	2nd Armored Brigade Combat Team 1st Cavalry Division  •  2014-16
	201st Battlefield Surveillance Brigade 2014-16