 On 16 December 2004, as part of the Army's modular transformation, the 204th Forward Support Battalion was inactivated, and reorganized and re-designated as the 204th Brigade Support Battalion.As part of the modular transformation, assets previously held at division level, but habitually attached a division's brigades during operations were made organic to those brigades.The 204th Brigade Support Battalion was relieved from assignment to the 4th Infantry Division and reactivated assigned to the reorganized and re-designated 2nd Brigade Combat Team, 4th Infantry Division.