Lineage and Honors Information as of 9 October 2015
3d Battalion, 15th Infantry Regiment
- Constituted 3 May 1861 in the Regular Army as Company C, 1st Battalion, 15th Infantry
- Organized 17 October 1861 at Newport Barracks, Kentucky
- Reorganized and redesignated 21 September 1866 as Company C, 15th Infantry
- Consolidated 12 August 1869 with Company C, 35th Infantry (see ANNEX 1), and consolidated unit designated as Company C, 15th Infantry
- (15th Infantry assigned 17 July 1922 to the Philippine Division)
- Inactivated 1 April 1929 in the Philippines
- (1st Battalion, 15th Infantry, relieved 26 June 1931 from assignment to the Philippine Division; assigned 12 January 1940 to the 3d Division [later redesignated as the 3d Infantry Division])
- Activated 23 May 1940 at Fort Lewis, Washington
- Inactivated 1 July 1957 at Fort Benning, Georgia, and relieved from assignment to the 3d Infantry Division; concurrently redesignated as Headquarters and Headquarters Company, 3d Battle Group, 15th Infantry
- Withdrawn 31 March 1959 from the Regular Army, allotted to the Army Reserve, and assigned to the 63d Infantry Division (organic elements concurrently constituted)
- Battle Group activated 1 May 1959 with Headquarters at Santa Ana, California (Headquarters and Headquarters Company concurrently consolidated with Headquarters and Headquarters Company, 2d Battalion, 254th Infantry [see ANNEX 2], and consolidated unit designated a Headquarters and Headquarters Company, 3d Battle Group, 15th Infantry)
- Reorganized and redesignated 1 April 1963 as the 3d Battalion, 15th Infantry
- Inactivated 31 December 1965 at Santa Ana, California, and relieved from assignment to the 63d Infantry Division
- Withdrawn 16 June 1989 from the Army Reserve and allotted to the Regular Army; concurrently assigned to the 24th Infantry Division and activated at Fort Stewart, Georgia
- Relieved 16 February 1996 from assignment to the 24th Infantry Division and assigned to the 3d Infantry Division; relieved 16 March 2004 from assignment to the 3d Infantry Division and assigned to the 2d Brigade Combat Team, 3d Infantry Division
- Redesignated 1 October 2005 as the 3d Battalion, 15th Infantry Regiment
- Inactivated 16 July 2006 at Fort Stewart, Georgia, and relieved from assignment to the 2d Brigade Combat Team, 3d Infantry Division
- Assigned 16 March 2009 to the 4th Brigade Combat Team, 3d Infantry Division, and activated at Fort Stewart, Georgia
- Relieved 16 June 2015 from assignment to the 4th Brigade Combat Team, 3d Infantry Division and assigned to the 2d Brigade Combat Team, 3d Infantry Division
- ANNEX 1
- Constituted 3 May 1861 in the Regular Army as Company C, 3d Battalion, 17th Infantry
- Organized 29 October 1865 at Hart Island, New York
- Reorganized and redesignated 21 September 1866 as Company C, 35th Infantry
- Consolidated 12 August 1869 with Company C, 15th Infantry, and consolidated unit designated as Company C, 15th Infantry
- ANNEX 2
- Constituted 18 January 1943 in the Army of the United States as Headquarters and Headquarters Company, 2d Battalion, 254th Infantry, an element of the 63d Infantry Division
- Activated 15 June 1943 at Camp Blanding, Florida
- Inactivated 29 September 1945 at Camp Kilmer, New Jersey
- Allotted 22 February 1952 to the Organized Reserve Corps
- Activated 1 March 1952 at Santa Ana, California
- (Organized Reserve Corps redesignated 9 July 1952 as the Army Reserve)
- Consolidated 1 May 1959 with Headquarters and Headquarters Company, 3d Battle Group, 15th Infantry, and consolidated unit designated as Headquarters and Headquarters Company, 3d Battle Group, 15th Infantry
Campaign Participation Credit
- Civil War
- Shiloh
- Murfreesborough
- Chickamauga
- Chattanooga
- Atlanta
- Alabama 1862
- Kentucky 1862
- Mississippi 1862
- Tennessee 1862
- Tennessee 1863
- Georgia 1864
- Indian Wars
- Utes
- New Mexico 1880
- China Relief Expedition
- Streamer without inscription
- Philippine Insurrection
- Luzon 1900
- Luzon 1901
- World War II
- Algeria-French Morocco
- (with arrowhead)
- Tunisia
- Sicily (with arrowhead)
- Naples-Foggia
- Anzio (with arrowhead)
- Rome-Arno
- Southern France (with arrowhead)
- Rhineland
- Ardennes-Alsace
- Central Europe
- Korean War
- CCF Intervention
- First UN Counteroffensive
- CCF Spring Offensive
- UN Summer-Fall Offensive
- Second Korean Winter
- Korea, Summer-Fall 1952
- Third Korean Winter
- Korea, Summer 1953
- Southwest Asia
- Defense of Saudi Arabia
- Liberation and Defense of Kuwait
- War on Terrorism
- Iraq:
- Iraqi Sovereignty
- New Dawn
- (Additional campaigns to be determined)
Company A additionally entitled to:
- Armed Forces Expeditions
- Somalia
Decorations
- Presidential Unit Citation (Army), Streamer embroidered SAN FRATELLO
- Presidential Unit Citation (Army), Streamer embroidered MONTELIMAR
- Presidential Unit Citation (Army), Streamer embroidered COLMAR
- Presidential Unit Citation (Army), Streamer embroidered JEBSHEIM, FRANCE
- Presidential Unit Citation (Army), Streamer embroidered KOWANG-NI
- Presidential Unit Citation (Army), Streamer embroidered IRAQ 2003
- Presidential Unit Citation (Navy), Streamer embroidered HWACHON RESERVOIR
- Meritorious Unit Commendation (Army), Streamer embroidered IRAQ 2005-2006
- Meritorious Unit Commendation (Army), Streamer embroidered IRAQ 2010-2011
- Meritorious Unit Commendation (Army), Streamer embroidered AFGHANISTAN 2013
- Navy Unit Commendation, Streamer embroidered PANMUNJOM
- French Croix de Guerre with Palm, World War II, Streamer embroidered COLMAR
- French Croix de Guerre, World War II, Fourragere
- Republic of Korea Presidential Unit Citation, Streamer embroidered UIJONGBU CORRIDOR
- Republic of Korea Presidential Unit Citation, Streamer embroidered IRON TRIANGLE
- Republic of Korea Presidential Unit Citation, Streamer embroidered KOREA 1950-1952
- Chryssoun Aristion Andrias (Bravery Gold Medal of Greece), Streamer embroidered KOREA
By Order of the Secretary of the Army:
RICHARD W. STEWART
Chief of Military History
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