on 7 March 2007, and was headquartered at Fort George G. Meade, Maryland. Division East replaced the functions previously performed by US Army Reserve divisions, like the 87th Division, in its area of responsibility. As a result, the 87th Division's brigades were subsequently inactivated and the 87th Division was reorganized and redesignated as the 87th Army Reserve Support Command. The 87th Army Reserve Support Command assumed command and control of the newly formed Mobilization Support Group East and its 16 subordinate battalions effective 16 October 2008." On 1 October 2015 the 87th Army Reserve Support Command was inactivated. On September 22nd, 2021. The 87th Training Division was reactivated in Hoover, Alabama under the 84th Training Command. <ref> References The Army Almanac: A Book of Facts Concerning the Army of the United States U.S. Government Printing Office, 1950 reproduced at http://www.history.army.mil/html/forcestruc/cbtchron/cbtchron.html. Stalwart and Strong: The Story of the 87th Infantry Division 87th Infantry Division Association Infantry divisions of the United States Army Infantry Division, U.S. 087 Military units and formations established in 1917 Military units and formations disestablished in 2015 United States Army divisions of World War I Infantry divisions of the United States Army in World War II