21st Infantry Regiment (United States)

Infobox Military Unit
unit_name=21st Infantry Regiment


caption=21st Infantry Regiment coat of arms
country=United States of America
allegiance=
type=Regiment
branch=Regular Army
dates=30 May 1862-
specialization=
command_structure=
size=
current_commander=
garrison=
ceremonial_chief=
nickname=Gimlet
patron=
motto=Duty
colors=
march=
mascot=
battles=Civil War
Indian Wars
War with Spain
Philippine Insurrection
World War II
Korean War
Vietnam War
Armed Forces Expeditions - Panama
notable_commanders=
anniversaries=
identification_symbol=
identification_symbol_label=Distinctive Unit Insignia
identification_symbol_2=
identification_symbol_2_label=US Regiments
previous=20th Infantry Regiment
next=22nd Infantry RegimentThe 21st Infantry Regiment is a United States Army infantry regiment.

Lineage

*Constituted 3 May 1861 in the Regular Army as the 2d 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 32d 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*Withdrawn 16 January 1986 from the Combat Arms Regimental System and reorganized under the United States Army Regimental System

Annex

*Constituted 3 May 1861 in the Regular Army as the 3d Battalion, 14th Infantry
*Organized 27 July 1865 at Fort Trumbull, Connecticut
*Reorganized and redesignated 21 September 1866 as the 32d Infantry
*Consolidated 9-31 August 1869 with the 21st Infantry and consolidated unit designated as the 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 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
*Vietnam: Counteroffensive, Phase II; Counteroffensive, Phase III; Tet Counteroffensive; Counteroffensive, Phase IV; Counteroffensive, Phase V; Counteroffensive, Phase VI; Tet 69/Counteroffensive; Summer-Fall 1969; Winter-Spring 1970; Sanctuary Counteroffensive; Counteroffensive, Phase VII; Consolidation I; Consolidation II; Cease-Fire
*Armed Forces Expeditions: Panama
*Operation Iraqi Freedom and Enduring Freedom (Afghanistan), Global War on Terrorism

Decorations

*Presidential Unit Citation (Army) for DEFENSE OF KOREA
*Presidential Unit Citation (Army) for SANGHONGJONG-NI
*Valorous Unit Award for TAM KY - TIEN PHUOC
*Navy Unit Commendation for CAM LO
*Philippine Presidential Unit Citation for 17 OCTOBER 1944 TO 4 JULY 1945
*Republic of Korea Presidential Unit Citation for PYONGTAEK
*Republic of Korea Presidential Unit Citation for KOREA