"In what the Army describes as the 'most significant Army restructuring in the past 50 years,' the Army intends to redesign its current 10 active duty division force to a 43 or 48 brigade-level unit of action or UA force by FY2007. The Army National Guard will also redesign its force structure in a similar fashion. While the Army cites the need for a more responsive, deployable, joint, and expeditionary force, others suggest that the primary reason for redesign is the ever increasing long term troop requirements to support the Global War on Terrorism (GWOT). The addition of up to 15 additional active duty and a yet to be finalized number of Army National Guard brigade-sized UAs could provide an additional force pool of deployable units to ease the burden on units presently deployed, and possibly to shorten the length of time that units are deployed on operations. The Army has two other concurrent initiatives underway which it considers inextricably linked to its brigade-centric redesign -- restructuring to create new 'high demand' units and stabilizing the force. Both initiatives involve substantial policy, organizational, and personnel changes from FY2004 - FY2009."
CRS Report for Congress, RL32476