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397th Engineer Battalion (United States)

Field	Value
unit_name	397th Engineer Battalion
image	397th EN BN Unit Crest.jpg
image_size	150
caption	397th Engineer Battalion Unit Crest
country	United States
allegiance	United States Army
branch	US Army Reserve
dates	15 August 1942 – Present
specialization	Engineers
size	Battalion
garrison	Marina, California
current_commander	LTC Christopher Smiley
current_commander_label	Commander
ceremonial_chief	CSM Ban Tien
ceremonial_chief_label	Command Sergeant Major

The 397th Engineer Battalion is a multi-role engineer battalion of the United States Army based in Marina, California. Activated 18 May 1959 at Eau Claire, the battalion traces its lineage back to World War II. It is a United States Army Reserve formation and is subordinate to the 301st Maneuver Enhancement Brigade at Joint Base Lewis McCord WA.

Organization

The battalion is a subordinate unit of the 301st Maneuver Enhancement Brigade. As of January 2026 the battalion consists of the following units:

397th Engineer Battalion, in Marina (CA)
- Headquarters and Headquarters Company, 397th Engineer Battalion, in Marina (CA)
- Forward Support Company, 397th Engineer Battalion, in Marina (CA)
- 322nd Engineer Company (Vertical Construction Company — VCC), in Sloan (NV)
- 374th Engineer Company (Sapper), in Concord (CA)
- 386th Engineer Company (Clearance), in Sloan (NV)
- 485th Engineer Platoon (Area Clearance), in Sloan (NV)
- 801st Engineer Company (Engineer Construction Company — ECC), in Vallejo (CA)

Lineage

Constituted 5 May 1942 in the Army of the United States as the 2d Battalion, 353d Engineer Regiment

Activated 15 August 1942 at Camp White, Oregon, as the 2d Battalion, 353d Engineer General Service Regiment

Reorganized and redesignated 1 April 1944 as the 1393d Engineer Construction Battalion

Inactivated 28 February 1946 in Japan

Redesignated 6 February 1947 as the 397th Engineer Construction Battalion, and allotted to the Organized Reserves

Activated 19 February 1947 at Milwaukee, Wisconsin

(Organized Reserves redesignated 25 March 1948 as the Organized Reserve Corps; redesignated 9 July 1952 as the Army Reserve)

Inactivated 17 November 1950 at Milwaukee, Wisconsin

Redesignated 27 April 1959 as the 397th Engineer Battalion

Activated 18 May 1959 at Eau Claire, Wisconsin

Elements ordered into active military service in support of the War on Terror:

652nd Engineer Company (Multi-Role Bridge), Ellsworth, WI – Operation Iraqi Freedom, 2003–04,
C Company, Wausau, WI – 2006–07, 428th Engineer Company (Mobility Augmentation), Wausau, WI – 2010–11,
113th Engineer Facility Detachment, Milwaukee, WI – 2011–12,
871st Engineer Facility Detachment, Fort McCoy, WI – 2012–13
372nd Engineer Company (Vertical Construction), Pewaukee, WI – 2013–14

Honors

Campaign streamers

Conflict	Streamer	Year(s)
	World War II		Luzon

Unit Decorations

Award	Year(s)	Notes
	Philippine Presidential Unit Citation		1944–1945		For service in the Pacific Theater
	Valorous Unit Award		2003–2004		652nd Engineer Company, Operation Iraqi Freedom

References

"Our units". 416th Engineer Command.
"California units". US Army Reserve.
"Nevada units". US Army Reserve.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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