Lineage and Honors Information as of 22 March 2021
4th Engineer Battalion
- Organized 31 December 1861 in the Regular Army at Washington, D.C., from new and existing companies of engineers as a provisional engineer battalion (constituted 28 July 1866 as the Battalion of Engineers)
- Expanded 14 March-7 June 1901 to form the 1st and 2d Battalions of Engineers (1st Battalion of Engineers--hereafter separate lineage)
- 2d Battalion of Engineers expanded, reorganized, and redesignated 1 July- 1 August 1916 as the 2d Regiment of Engineers
- 2d Regiment of Engineers expanded 21 May-20 June 1917 to form the 2d, 4th, and 5th Regiments of Engineers (2d and 5th Regiments of Engineers--hereafter separate lineages)
- 4th Regiment of Engineers redesignated 29 August 1917 as the 4th Engineers
- Assigned 1 January 1918 to the 4th Division
- Inactivated 21 September 1921 at Camp Lewis, Washington
- (Company A activated 24 July 1922 at Fort Bragg, North Carolina)
- Relieved 15 August 1927 from assignment to the 4th Division and assigned to the 6th Division
- (Company A inactivated 30 September 1929)
- Relieved 1 October 1933 from assignment to the 6th Division and assigned to the 4th Division (later redesignated as the 4th Infantry Division) (Company A concurrently activated at Fort Benning, Georgia)
- Redesignated 19 October 1939 as the 4th Engineer Battalion
- Activated (less Company A) 1 June 1940 at Fort Benning, Georgia
- Reorganized and redesignated 19 September 1942 as the 4th Engineer Motorized Battalion
- Reorganized and redesignated 1 August 1943 as the 4th Engineer Combat Battalion
- Inactivated 19 February 1946 at Camp Butner, North Carolina
- Activated 6 July 1948 at Fort Ord, California
- Redesignated 5 June 1953 as the 4th Engineer Battalion
- Inactivated 15 December 2004 at Fort Carson, Colorado, and relieved from assignment to the 4th Infantry Division
- Headquarters and Headquarters Company activated 18 October 2006 at Fort Carson, Colorado (Support Company concurrently constituted and activated)
Campaign Participation Credit
- Civil War
- Peninsula
- Antietam
- Fredericksburg
- Chancellorsville
- Wilderness
- Spotsylvania
- Cold Harbor
- Petersburg
- Appomattox
- Virginia 1863
- War with Spain
- Santiago
- Philippine Insurrection
- Streamer without inscription
- World War I
- Aisne-Marne
- St. Mihiel
- Meuse-Argonne
- Champagne 1918
- Lorraine 1918
- World War II
- Normandy (with arrowhead)
- Northern France
- Rhineland
- Ardennes-Alsace
- Central Europe
- 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
- War on Terrorism
- Afghanistan:
- Consolidation II
- Consolidation III
- Iraq:
- Liberation of Iraq
- Transition of Iraq
- Iraqi Sovereignty
Decorations
- Presidential Unit Citation (Army), Streamer embroidered HURTGEN FOREST
- Valorous Unit Award, Streamer embroidered IRAQ 2003-2004
- Valorous Unit Award, Streamer embroidered SOUTHERN AFGHANISTAN 2009-2010
- Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1967-1968
- Belgian Fourragere 1940
- Cited in the Order of the Day of the Belgian Army for action in Belgium
- Cited in the Order of the Day of the Belgian Army for action in the Ardennes
- Republic of Vietnam Cross of Gallantry with Palm, Streamer embroidered VIETNAM 1966-1969
- Republic of Vietnam Cross of Gallantry with Palm, Streamer embroidered VIETNAM 1969-1970
- Republic of Vietnam Civil Action Honor Medal, First Class, Streamer embroidered VIETNAM 1966-1969
By Order of the Secretary of the Army:
CHARLES R. BOWERY, JR.
Chief of Military History