4th Engineer Battalion (United States)
Lineage

4th Engineer Battalion (United States)

Section Title: Lineage
Table Section Text: None

Year	Date	Event

1861	31 December	Organized 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).

1901	14 March	Expanded to form the 1st and 2nd Battalions of Engineers (1st Battalion of Engineers—hereafter separate lineage).

1916	1 July	2nd Battalion of Engineers expanded, reorganized, and redesignated as the 2nd Regiment of Engineers.

1917	21 May	2nd Regiment of Engineers expanded to form the 2nd, 4th, and 5th Regiments of Engineers (2nd and 5th Regiments of Engineers—hereafter separate lineages).

1917	29 August	4th Regiment of Engineers redesignated as the 4th Engineer Regiment.

1918	1 January	Assigned to the 4th Division.

1918	May	Unit deployed to France with the 4th Division between, making use of the British Shipping Program.

1919	August	Unit returned to CONUS with the 4th Division.

1921	21 September	Unit Inactivated at Fort Lewis, Washington.

1922	24 July	Company A activated at Fort Bragg, North Carolina.

1927	15 August	Relieved from assignment to the 4th Division and assigned to the 6th Division.

1929	30 September	Company A inactivated.

1933	1 October	Relieved 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).

1939	19 October	Redesignated as the 4th Engineer Battalion.

1940	1 June	Activated (less Company A) at Fort Benning, Georgia.

1942	19 September	Reorganized and redesignated as the 4th Engineer Motorized Battalion.

1943	1 August	Reorganized and redesignated as the 4th Engineer Combat Battalion.

1944	18 January	Departed New York Port of Embarkation.

1944	29 January	Arrived in England started to prepare for Deployment.

1944	6 June	Unit Deployed to Normandy and entered Combat in the Normandy Campaign.

1944	24 July	Normandy Campaign concluded.

1944	25 July	Northern France Campaign started.

1944	14 September	Northern France Campaign concluded.

1944	15 September	Rhineland Campaign started.

1944	16 December	Unit was withdrawn from the Rhineland Campaign to engage in the Ardennes-Alsace Campaign.

1945	25 January	Ardennes-Alsace Campaign concluded. Unit resumed combat in Rhineland Campaign.

1945	21 March	Rhineland Campaign concluded.

1945	22 March	Central Europe Campaign started.

1945	11 May	Central Europe Campaign concluded.

1945	12 July	Unit returned to CONUS and located at Camp Butner, North Carolina.

1945	14 August	Unit was located at Camp Butner, which is when the war ended.

1946	19 February	Inactivated at Camp Butner, North Carolina.

1948	6 July	Activated at Fort Ord, California.

1953	5 June	Redesignated as the 4th Engineer Battalion.

1966	7 July	Arrived in Vietnam. The Battalion had its headquarters collocated with the 4th Infantry Division at Pleiku.

1968	March	The Battalion moved its headquarters to Dak To.

1968	April	The Battalion moved its headquarters back to Pleiku.

1970	March	The Battalion split its headquarters, with some elements located at Pleiku, with the rest at An Khê.

1970	April	The Battalion consolidated its headquarters at An Khê.

1970	15 December	Unit returned to CONUS.

2003	April	The Battalion deployed to Iraq in support of Operation Iraqi Freedom.

2004	February	The Battalion redeployed to Ft. Carson, Colorado.

2004	15 December	Inactivated at Fort Carson, Colorado, and relieved from assignment to the 4th Infantry Division.

2006	18 October	Headquarters and Headquarters Company activated at Fort Carson, Colorado (Support Company concurrently constituted and activated).

2009	February	The Battalion deployed to Baghdad, Iraq in support of Operation Iraqi Freedom.

2009	April	The Battalion moved to Kandahar, Afghanistan to support Operation Enduring Freedom.

2010	February	The Battalion redeployed to Ft. Carson, Colorado, having completed a twelve-month route clearance deployment to Iraq and Afghanistan in support of the Global War on Terror.

2011	August	The 62nd Engineer Company deployed to Iraq in support of Operation Iraqi Freedom and the 576th Engineer Company deployed to Afghanistan in support of Operation Enduring Freedom.

2011	December	The 62nd Engineer Company redeployed to Fort Carson, Colorado, after a 5-month deployment to Iraq.

2012	February	The 569th Engineer Company deployed to Afghanistan in support of Operation Enduring Freedom.

2012	July	The 576th Engineer Company redeployed to Fort Carson, Colorado, after a 12-month deployment to Afghanistan.

2013	February	The 569th Engineer Company redeployed to Fort Carson, Colorado, after being deployed 12 months to Afghanistan. Also within the same month, the 62nd Engineer Company deployed to Kandahar, Afghanistan in support of Operation Enduring Freedom.

2013	June	The 4th Engineer Battalion, its Headquarters and Headquarters Company, and a Forward Support Company deployed to Kandahar, Afghanistan in support of Operation Enduring Freedom.

2013	August	The 576th Engineer Company deployed to Regional Command West (RC-W), Afghanistan in support of Operation Enduring Freedom.	2017	March	The 576th Engineer Company deployed to South Korea for a 9-month rotation.

Sentence(s)

Upon the 569th Engineer Company's return, the 62nd Engineer Company (Sapper) deployed to Afghanistan in support of Operation Enduring Freedom in February 2013.

final_sentence: Upon the 569th Engineer Company's return, the 62nd Engineer Company (Sapper) deployed to Afghanistan in support of Operation Enduring Freedom in February 2013.