The Army is currently organizing 70 brigade combat teams, each of which with about 4,000 troops. Forty-two BCTs are in the active Army and 28 are in the National Guard. There will be another 200 support brigades. The goal is to establish these by 2011.
It is transforming itself from its traditional division structure. A division encompasses three to five brigades, each with their own functions, all of them dependent on capabilities resident in the division headquarters and the other brigades. The new BCTs are more independent and deployable, able to manage their own logistics, intelligence and administration in addition to combat, for longer periods of time.
The current strength of the U.S.Army is 507,000 troops though it is authorized already to expand to 512,000.
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