Because of a shortage of men, on 15 July 1942, the 2nd Cavalry Division was inactivated to permit organization of the 9th Armored Division. White cavalrymen were assigned to the 9th Armored Division, and the all-black 4th Cavalry Brigade became a non-divisional formation.
As part of a large-scale Army reorganization in March 1942, the Chief of Staff of the Army, General George Marshall, abolished the position of branch chief in the ground arms, including for the Cavalry. The branch chiefs' functions were centralized within the new Army Ground Forces headquarters as part of an effort to consolidate and streamline the integration of training and doctrine among the Army's different branches.
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