4th Engineer Battalion (United States)


The 4th Engineer Battalion is an engineer battalion of the United States Army. It is made up of combat engineers. The unit saw action in the American Civil War, World War I, World War II, Vietnam War, and the Global War on Terrorism, to include Operation Iraqi Freedom and Operation Enduring Freedom.

Coat of arms

Blazon

The wavy fess alludes to the outstanding feat accomplished by the organization in World War I, in which the regiment bridged the Vesle under heavy fire, making possible the forcing of the passage by the Division.
The yellow canton, representative of the color of the Engineers' facing when the old companies of the regiment were organized in 1861, refers to the 2nd Engineers, from which the 4th Engineers was organized in 1916.
The device on the canton was the badge of the Engineers and Pontoniers of the American Civil War.
It was redesignated for the 4th Engineer Battalion on 4 December 1940.

Distinctive unit insignia

The wavy fess alludes to the outstanding feat accomplished by the organization in World War I, in which the regiment bridged the Vesle under heavy fire, making possible the forcing of the passage by the Division.
The yellow canton, representative of the color of the Engineers' facing when the old companies of the regiment were organized in 1861, refers to the 2nd Engineers, from which the 4th Engineers was organized in 1916.
The device on the canton was the badge of the Engineers and Pontoniers of the Civil War.
It was redesignated for the 4th Engineer Battalion on 5 December 1940.

Formation and early history

The battalion was organized 31 December 1861 in the Regular Army at Washington, D.C., from new and existing companies of engineers as a provisional engineer battalion. The battalion participated in major campaigns and battles in the American Civil War to include: Peninsula Campaign, Battle of Antietam, Battle of Fredericksburg, Battle of Chancellorsville, Battle of the Wilderness, Battle of Spotsylvania Court House, Cold Harbor, Siege of Petersburg, and the Confederate surrender after the Battle of Appomattox Court House. It was constituted 28 July 1866 as the Battalion of Engineers. The battalion also participated in the War with Spain at the Battle of Santiago in July 1898 and the Philippine Insurrection in 1899. The battalion was then expanded 14 March-7 June 1901 to form the 1st and 2nd Battalions of Engineers.

The Great War and World War II

The 2nd Battalion of Engineers was further expanded, reorganized and redesignated during July 1916 as the 2nd Regiment of Engineers. The unit was expanded yet again during May and June 1917 to form the 2nd, 4th, and 5th Regiments of Engineers. The 4th Regiment of Engineers was redesignated as the 4th Engineers in August 1917 and was, thereafter, assigned to the 4th Division in January 1918. The 4th Engineers deployed to France in support of the Western Front by participating in campaigns within the European theater. Such campaigns included: Aisne-Marne, Battle of Saint-Mihiel, Meuse-Argonne Offensive, and November 1918 in Alsace-Lorraine. After occupation service, the unit was inactivated in 1921 at Camp Lewis, Washington. Between 1927 and 1933 the unit was reassigned to support the 6th Division and six years later it was redesignated as the 4th Engineer Battalion activated 1 June 1940 at Fort Benning, Georgia. Reorganizations and redesignations led first as the 4th Engineer Motorized Battalion then the 4th Engineer Combat Battalion were formed. In January 1944, the battalion arrived in England to prepare for deployment to Normandy, France. On 6 June 1944 the battalion deployed to Normandy as part of Operation Overlord. After the Normandy invasion, the battalion continued across western Europe and participated in campaigns such as Northern France, the Rhineland, Ardennes-Alsace, and Central Europe. Soon after World War II ended, the unit was inactivated 19 February 1946 at Camp Butner, North Carolina. This did not last long however, with reactivation on 6 July 1948 at Fort Ord, California and subsequent redesignation as the 4th Engineer Battalion in June 1953.

Vietnam War

The 4th Engineer Battalion was activated for deployment in July 1966 to the Vietnam War from Fort Lewis, Washington, as the Vanguard of the 4th Infantry Division, and assigned to support the 1st Brigade 8th Infantry. Company A was sent to Pleiku, Vietnam via ship on the MST Gordan and later units on the Buckner, flying from SEATEC on 7 July 1966, to Oakland Naval Shipyard, and then transported to, via San Diego to pick up 3500 Marines, then on to Japan,, and then to Qui Nhơn, we were able to secure a palette of beer, and mess food, and other misc supplies and trucked to Pleiku by our squad platoon of dump trucks. We were then airlifted to Camp Holloway, Pleiku, by Caribou Aircraft. Then the battalion was driven by rough terrain buses to Dragon Mountain and into a huge area of four square miles, in for personnel and heavy equipment, beached landed and then headed north up Highway 1 and convoyed to Tuy Hòa and built the 2nd Brigade of the 8th Infantry 4th ID Base Camp. The company was then assigned simultaneously, to operations, at Tuy Hòa, and 350 km back up to order to start securing and building up construction of base camp for the arrival of the 4th Infantry Division in August 1966. This is the origin of it being named the "Vanguard of the 4th Division". This base camp was named Camp Enari after the 1st officer, Lieutenant Enari, to be killed.

Further operations

The CO A, 4th Engineer Battalion convoyed back down to Qui Nhơn from Pleiku, then via LST transport Pleiku, Camp Enari, Hwy 1, Qui Nhơn, QL 6B, La Hai, and Phú Yên Province. There, it performed daily mine sweeps, repaired roads and bridges on Highways 1, 14 & 19 through the Central Highlands. After it had completed these tasks, the unit returned to Camp Enari. This task included mine-clearing and "jungle busting" with HD 16 Allis Chambers Bulldozers.
Later, the individual companies B, C, D, E, and F, of the battalion were assigned to ground operations in Tuy Hòa, Jackson Hole Vietnam, LZ Oasis, Đắk Tô, Đức Cơ, Plei Me, Kontum, Ban Me Thuot, Ia Drang Valley and Đức Phổ. Various Landing Zones were built by the 4th Engineers: LZ Marylou near Kontum, LZ Oasis, and LZ Jackson Hole, LZ Duc Co, LZ Baldy, and others. Their operations there included activities concerning Tuy Hòa, La Hai, Polei Kleng, Bong Son and its enormous bridge, and the coastal town of Đức Phổ. Captain Knutzen, a West Point graduate, led the unit through a one-year tour with only one soldier reported as killed in action.
The 4th Engineer Battalion participated in the intense combat of Tet 1968. It is often said that engineers are really "infantrymen with additional picks and shovels." This was certainly the case for the 4th Combat Engineers Battalion in Vietnam.
In November 1968, Charlie Company accompanied infantry units of the 4th division on "Operation Tollroad," designed to deter traffic down the Ho Chi Minh Trail. Deployed from Polei Kleng, the operation was completed in two legs; the first team started near the Ia Drang Valley, moved into Cambodia on the Trail and moved North until crossing into Laos. There they were relieved by the second team which continued North until 1 December. The operation blew bunkers, constructed abatis and performed other deterrent actions along the Trail. On Thanksgiving eve, Turkey dinner was delivered into Laos by helicopter.
Company A, 4th Engineer Battalion received two Presidential Unit Citations, 20 May 1967 Duc Co and Nove 19–23 1967 Dakto, they also received the Meritorious Unit Citation and Unit & Individual Vietnamese Gallantry Medals. They were shipped on the USMS Walker, from Oakland Terminal, to San Diego, to Kodak Japan, overnight stop, and landed at Qui Nhơn, and in-country from, 7 July 1966 to 6 June 1967. The colors were brought to their new home at Ft. Carson in 1971, and remain there, with CO A being deactivated on 12 December 2004.

Withdrawal

Some personnel of A Company departed Vietnam 30 days early and the rest with the rest of the battalion to follow within weeks, on 15 December 1970. The 4th Engineer Battalion was reflagged December 2004, at Ft. Carson, Inactivated 15 December 2004 at Fort Carson, Colorado, and relieved from assignment to the 4th Infantry Division. "A Company" The Vanguard, with two Presidential Unit Citations, with Oak Leaf Cluster, was deactivated, with the other companies reflagged as B, C, D, and F BCT units and with F being deployed to Iraq.

Modern era

The 4th Engineer Battalion's Headquarters and Headquarters Company was reactivated 18 October 2006 at Fort Carson, Colorado. Additionally, the battalion consists of the 62nd Engineer Company, 576th Engineer Company, 41st Engineer Company, 569th Engineer Company, 615th Engineer Company and a Forward Support Company. In February 2009, the battalion deployed in support of Operation Iraqi Freedom to Camp Liberty, Iraq. In early March, the battalion was reassigned to support Operation Enduring Freedom, and by late April, the entire battalion had arrived at Kandahar Airfield, Afghanistan. It was there that the battalion designated itself "Task Force THOR" and began route clearance operations across Regional Command South. The battalion supported Operation Enduring Freedom in RC-South for the next 10 months, redeploying to Fort Carson in February 2010.
The battalion's next involvement in the Global War on Terrorism resulted in the 62nd Engineer Company deployment in support of Operation Iraqi Freedom from August 2011 to December 2011, while, simultaneously, the 576th Engineer Company deployment in support of Operation Enduring Freedom from August 2011 to July 2012. The 569th Engineer Company deployed in support of Operation Enduring Freedom from February 2012 to February 2013. Upon the 569th Engineer Company's return, the 62nd Engineer Company deployed to Afghanistan in support of Operation Enduring Freedom in February 2013 and await redeployment scheduled around November 2013. The battalion and its Forward Support Company recently deployed to Kandahar, Afghanistan located within Regional Command South in support of Operation Enduring Freedom in June 2013 and awaits redeployment scheduled in March 2014. In August 2013, the 576th Engineer Company deployed to Regional Command West to support Italian operations under Operation Enduring Freedom and returned in May 2014
As of August 2013, the 4th Engineer Battalion and its subsequent Engineer Companies, in support of both Operation Enduring Freedom and Operation Iraqi Freedom, currently has 28 months of continuous service in OIF and OEF with a combined total of 37 months during that 28-month period due to having multiple Engineer Companies deployed at the same time. Also, as of August 2013, the 4th Engineer Battalion has accrued more than 95 months of combined deployment time in support of the Global War on Terrorism from 2003 to 2013.

Lineage

YearDateEvent---
186131 DecemberOrganized in the Regular Army at Washington, D.C., from new and existing companies of engineers as a provisional engineer battalion.---
190114 MarchExpanded to form the 1st and 2nd Battalions of Engineers.---
19161 July2nd Battalion of Engineers expanded, reorganized, and redesignated as the 2nd Regiment of Engineers.---
191721 May2nd Regiment of Engineers expanded to form the 2nd, 4th, and 5th Regiments of Engineers.---
191729 August4th Regiment of Engineers redesignated as the 4th Engineer Regiment.---
19181 JanuaryAssigned to the 4th Division.---
1918MayUnit deployed to France with the 4th Division between, making use of the British Shipping Program.---
1919AugustUnit returned to CONUS with the 4th Division.---
192121 SeptemberUnit Inactivated at Fort Lewis, Washington.---
192224 JulyCompany A activated at Fort Bragg, North Carolina.---
192715 AugustRelieved from assignment to the 4th Division and assigned to the 6th Division.---
192930 SeptemberCompany A inactivated.---
19331 OctoberRelieved from assignment to the 6th Division and assigned to the 4th Division .---
193919 OctoberRedesignated as the 4th Engineer Battalion.---
19401 JuneActivated at Fort Benning, Georgia.---
194219 SeptemberReorganized and redesignated as the 4th Engineer Motorized Battalion.---
19431 AugustReorganized and redesignated as the 4th Engineer Combat Battalion.---
194418 JanuaryDeparted New York Port of Embarkation.---
194429 JanuaryArrived in England started to prepare for Deployment.---
19446 JuneUnit Deployed to Normandy and entered Combat in the Normandy Campaign.---
194424 JulyNormandy Campaign concluded.---
194425 JulyNorthern France Campaign started.---
194414 SeptemberNorthern France Campaign concluded.---
194415 SeptemberRhineland Campaign started.---
194416 DecemberUnit was withdrawn from the Rhineland Campaign to engage in the Ardennes-Alsace Campaign.---
194525 JanuaryArdennes-Alsace Campaign concluded. Unit resumed combat in Rhineland Campaign.---
194521 MarchRhineland Campaign concluded.---
194522 MarchCentral Europe Campaign started.---
194511 MayCentral Europe Campaign concluded.---
194512 JulyUnit returned to CONUS and located at Camp Butner, North Carolina.---
194514 AugustUnit was located at Camp Butner, which is when the war ended.---
194619 FebruaryInactivated at Camp Butner, North Carolina.---
19486 JulyActivated at Fort Ord, California.---
19535 JuneRedesignated as the 4th Engineer Battalion.---
19667 JulyArrived in Vietnam. The Battalion had its headquarters collocated with the 4th Infantry Division at Pleiku.---
1968MarchThe Battalion moved its headquarters to Dak To.---
1968AprilThe Battalion moved its headquarters back to Pleiku.---
1970MarchThe Battalion split its headquarters, with some elements located at Pleiku, with the rest at An Khê.---
1970AprilThe Battalion consolidated its headquarters at An Khê.---
197015 DecemberUnit returned to CONUS.---
2003AprilThe Battalion deployed to Iraq in support of Operation Iraqi Freedom.---
2004FebruaryThe Battalion redeployed to Ft. Carson, Colorado.---
200415 DecemberInactivated at Fort Carson, Colorado, and relieved from assignment to the 4th Infantry Division.---
200618 OctoberHeadquarters and Headquarters Company activated at Fort Carson, Colorado.---
2009FebruaryThe Battalion deployed to Baghdad, Iraq in support of Operation Iraqi Freedom.---
2009AprilThe Battalion moved to Kandahar, Afghanistan to support Operation Enduring Freedom.---
2010FebruaryThe 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.---
2011AugustThe 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.---
2011DecemberThe 62nd Engineer Company redeployed to Fort Carson, Colorado, after a 5-month deployment to Iraq.---
2012FebruaryThe 569th Engineer Company deployed to Afghanistan in support of Operation Enduring Freedom.---
2012JulyThe 576th Engineer Company redeployed to Fort Carson, Colorado, after a 12-month deployment to Afghanistan.---
2013FebruaryThe 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.---
2013JuneThe 4th Engineer Battalion, its Headquarters and Headquarters Company, and a Forward Support Company deployed to Kandahar, Afghanistan in support of Operation Enduring Freedom.---
2013AugustThe 576th Engineer Company deployed to Regional Command West, Afghanistan in support of Operation Enduring Freedom.2017MarchThe 576th Engineer Company deployed to South Korea for a 9-month rotation.

Honors

Campaign participation credit

;American Civil War:
Peninsula
Antietam
Fredericksburg
Chancellorsville
Wilderness
Spotsylvania
Cold Harbor
Petersburg
Appomattox
;Spanish–American War:
Santiago
;Philippine Insurrection:
Streamer w/o inscription
;World War I:
Aisne-Marne
St. Mihiel
Meuse-Argonne
Champagne 1918
Lorraine 1918
;World War II:
Normandy
Northern France
Rhineland
Ardennes-Alsace
Central Europe
;Vietnam War:
Counteroffensive, II
Counteroffensive, III
Tet Counteroffensive
Counteroffensive, IV
Counteroffensive, V
Counteroffensive, VI
Tet 69/Counteroffensive
Summer-Fall 1969
Winter-Spring 1970
Sanctuary 1970
Counteroffensive, VII
;Global War on Terrorism:
Consolidation II
Consolidation III
Transition I
Liberation of Iraq
Transition of Iraq
Iraqi Sovereignty

Decorations

;World War II:
Belgian Fourragère 1940
Presidential Unit Citation for HURTGEN FOREST 1944
;Vietnam War:
Meritorious Unit Commendation for VIETNAM 1967–1968
Republic of Vietnam Cross of Gallantry with Palm for VIETNAM 1966–1969
Republic of Vietnam Cross of Gallantry with Palm for VIETNAM 1969–1970
Republic of Vietnam Civil Action Honor Medal, First Class for VIETNAM 1966–1969
Presidential Unit Citation for PLEIKU PROVINCE
Presidential Unit Citation for DAK TO DISTRICT
Valorous Unit Award for QUANG NGAI PROVINCE
Republic of Vietnam Cross of Gallantry with Palm for VIETNAM 1966–1967
;Global War on Terrorism
Valorous Unit Award, Streamer embroidered IRAQ 2003-2004
Valorous Unit Award, SOUTHERN AFGHANISTAN 2009-2010