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The 21st Infantry Regiment ("Gimlet"〔) is a United States Army infantry regiment. ==Lineage== * Constituted 3 May 1861 in the Regular Army as the 2nd Battalion, 12th Infantry * Organized 20 May 1862 at Fort Hamilton, New York * Reorganized and redesignated 7 December 1866 as the 21st Infantry * Consolidated 9–31 August 1869 with the 32nd Infantry (see ANNEX) and consolidated unit designated as the 21st Infantry * Assigned 29 July 1918 to the 16th Division * Relieved 8 March 1919 from assignment to the 16th Division * Assigned 22 October 1921 to the Hawaiian Division (later redesignated as the 24th Infantry Division) * Relieved 5 June 1958 from assignment to the 24th Infantry Division and reorganized as a parent regiment under the Combat Arms Regimental System * Withdrawn 16 January 1986 from the Combat Arms Regimental System and reorganized under the United States Army Regimental System 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「21st Infantry Regiment (United States)」の詳細全文を読む スポンサード リンク
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