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4th Assault Amphibian Battalion

4th Assault Amphibian Battalion's mission is to land surface assault elements of a landing force and their equipment during amphibious operations, and to conduct mechanized operations and related combat support in subsequent operations ashore.

The Marine Corps is represented at the Gulfport Naval and Marine Corps Reserve Center by the 3rd Platoon, (Rein) Company A 4th Assault Amphibian Battalion, 4th Marine Division. One officer and 60 enlisted Marines compose the Reserve reinforced platoon. The reserve unit is supported by an Inspector-Instructor staff composed of one active duty Marine officer, 12 active duty Marine non commissioned officers and one regular Navy Corpsman.

The 4th Assault Amphibian Battalion activated on 19 August 1943 at Camp Pendelton, CA, as the 4th Amphibian Tractor Battalion, Division Special Troops, 4th Marine Division, Fleet Marine Force. It was reassigned during January 1944 to Corps Troops, V Amphibious Corps, and deployed to the Pacific Area. It was reassigned during April 1944 to Corps Troops, III Amphibious Corps and participated in the following World War II Campaigns:

  • Kwajalein;
  • Guam; and
  • Okinawa

It was redisignated on 8 September 1944 as the 4th Amphibian Tractor Battalion, Fleet Marine Force Pacific Troops, III Amphibious Corps. It was detached on 11 November 1944 from III Amphibious Corps.

The unit was redesignated on 15 July 1945 as the 4th Amphibian Tractor Battalion, 2nd Amphibian Tractor Group (Provisional), Fleet Marine Force, Pacific, and deployed to Guam, Marianas Islands. It was redesignated on 30 September 1945 as the 4th Amphibian Tractor Battalion, Fleet Marine Force, Pacific. It redeployed during October 1945 to Camp Pendelton, CA.

It deactivated on 26 November 1945.

It reactivated on 1 July 1962 at Tampa, FL, as the 4th Amphibian Tractor Battalion, Force Troops, Fleet Marine Force, USMCR.

It was redesignated on 1 October 1976 as the 4th Assault Amphibian Battalion, Fleet Marine Force, USMCR. The unit participated in training exercises throughout the 1970's and into the 1980's.

It participated in South West Asia, Desert shield and Desert Storm as augmentation to its sister assault amphibian battalions.

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