Lineage and Honors Information as of 2 June 2010
1st BATTALION, 21st INFANTRY REGIMENT
(GIMLET)
Constituted 3 May 1861 in the Regular Army as Company A, 2d Battalion, 12th Infantry
Organized 20 May 1862 at Fort Hamilton, New York
Reorganized and redesignated 7 December 1866 as Company A, 21st Infantry
Consolidated 20 August 1869 with Company A, 32d Infantry (see ANNEX), and consolidated unit designated as Company A, 21st Infantry
(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])
Redesignated 5 June 1958 as Headquarters and Headquarters Company, 1st Battle Group, 21st Infantry, and remained assigned to the 24th Infantry Division (organic elements concurrently constituted; activated 1 July 1958 in Germany)
Reorganized and redesignated 1 February 1963 as the 1st Battalion, 21st Infantry
Inactivated 15 April 1970 in Germany
Relieved 5 June 1972 from assignment to the 24th Infantry Division, assigned to the 25th Infantry Division, and activated at Schofield Barracks, Hawaii
Redesignated 1 October 2005 as the 1st Battalion, 21st Infantry Regiment
Relieved 16 October 2005 from assignment to the 25th Infantry Division, and assigned to the 2d Brigade Combat Team, 25th Infantry Division
ANNEX
Constituted 3 May 1861 in the Regular Army as Company A, 3d Battalion, 14th Infantry
Organized in August 1865 at Fort Trumbull, Connecticut
Reorganized and redesignated 21 September 1866 as Company A, 32d Infantry
Consolidated 20 August 1869 with Company A, 21st Infantry, and consolidated unit designated as Company A, 21st Infantry
CAMPAIGN PARTICIPATION CREDIT
Civil War
Peninsula
*Manassas
*Antietam
*Fredericksburg
*Chancellorsville
*Gettysburg
*Wilderness
*Spotsylvania
*Cold Harbor
*Petersburg
Virginia 1862
*Virginia 1863
Indian Wars
Modocs
Nez Perces
Bannocks
Arizona 1866
Arizona 1867
*Arizona 1868
Arizona 1869
*Arizona 1870
War with Spain
*Santiago
Philippine Insurrection
*Zapote River
*Luzon 1899
*Luzon 1900
*Luzon 1901
Luzon 1902
World War II
*Central Pacific
*New Guinea (with arrowhead)
*Leyte
*Luzon
*Southern Philippines
(with arrowhead)
Korean War
*UN Defensive
*UN Offensive
*CCF Intervention
*First UN Counteroffensive
*CCF Spring Offensive
*UN Summer-Fall Offensive
*Second Korean Winter
*Korea, Summer 1953
War on Terrorism
Iraq:
*Transition of Iraq
*Iraqi Governance
(Additional campaigns
to be determined)
DECORATIONS
*Presidential Unit Citation (Army), Streamer embroidered DEFENSE OF KOREA
Presidential Unit Citation (Army), Streamer embroidered SANGHONGJONG-NI
*Valorous Unit Award, Streamer embroidered BAGHDAD 2007-2009
*Philippine Presidential Unit Citation, Streamer embroidered 17 OCTOBER 1944 TO
4 JULY 1945
*Republic of Korea Presidential Unit Citation, Streamer embroidered PYONGTAEK
*Republic of Korea Presidential Unit Citation, Streamer embroidered KOREA 1953
JEFFREY J. CLARKE
Chief of Military History