3rd Assault Amphibian Battalion (3rd AABn) is one of two active duty assault amphibian battalions in the

United States Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionar ...

. The battalion is tasked with transporting US Marine forces and their equipment from assault ships to shore, and equipped with the

Amphibious Combat Vehicle The Amphibious Combat Vehicle (ACV) is a program initiated by Marine Corps Systems Command to procure an amphibious assault vehicle for the United States Marine Corps to supplement and ultimately replace the aging Assault Amphibious Vehicle ( ...

(ACV), which replaced the

Amphibious Assault Vehicle The Assault Amphibious Vehicle (AAV)—official designation AAVP-7A1 (formerly known as Landing Vehicle, Tracked, Personnel-7 abbr. LVTP-7)—is a fully tracked amphibious landing vehicle manufactured by BAE Systems Platforms & Services (prev ...

(AAV). The battalion is part of the

1st Marine Division The 1st Marine Division (1st MARDIV) is a Marine (military), Marine Division (military), division of the United States Marine Corps headquartered at Marine Corps Base Camp Pendleton, California. It is the ground combat element of the I Marine E ...

and the

I Marine Expeditionary Force The I Marine Expeditionary Force ("I" pronounced "One") is a Marine Air Ground Task Force (MAGTF) of the United States Marine Corps primarily composed of the 1st Marine Division, 3rd Marine Aircraft Wing, and 1st Marine Logistics Group. It i ...

. The unit is based in

Camp Pendleton Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and is one of the largest Marine Corps bases in the United States. It is on the Southern California coast in San Diego County and is bordered by ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

Mission

Land the surface assault element of the landing force and their equipment in a single lift from assault shipping during amphibious operations to inland objectives; to conduct mechanized operations and related combat support in subsequent operations ashore. The specific Mission Essential Tasks List (METL) includes: * Preparing combat ready units for deployment and operations in support of the

* Preparing combat ready units for deployment and operations in support of Maritime Pre-Positioned Forces (MPF) to any AOR as directed. * Providing sustained amphibious and ground mechanized support to the assault elements of the 1st Marine Division as well as other combat support as directed during subsequent operations ashore. * Providing support to the 1st Combat Engineer Battalion and other 1st Marine Division units in the clearing of lanes through minefields and other obstacles during amphibious operations and in support of subsequent operations ashore. * Preparing combat ready units for deployment with designated

Marine Expeditionary Units A Marine Expeditionary Unit (MEU, pronounced as one syllable "" IPA: ) is the smallest air-ground task force (MAGTF) in the United States Fleet Marine Force.Camp Pendleton Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and is one of the largest Marine Corps bases in the United States. It is on the Southern California coast in San Diego County and is bordered by ...

, and three retired companies, one of which being the reinforced company located at the

Marine Corps Air Ground Combat Center Twentynine Palms The Marine Corps Air Ground Combat Center (MCAGCC), also known as 29 Palms, is the largest United States Marine Corps base. The base covers a total area of 1,102 square miles. It was a census-designated place (CDP) officially known as Twentynin ...

History

World War II

3rd Assault Amphibian Battalion was originally activated 16 September 1942 at San Diego, California, as 3rd Amphibian Tractor (Amtrac) Battalion and assigned to the

3rd Marine Division The 3rd Marine Division is a division (military), division of the United States Marine Corps based at Camp Courtney, Marine Corps Base Camp Smedley D. Butler in Okinawa Prefecture, Okinawa, Japan. It is one of three active duty infantry division ...

. During December 1942 the battalion relocated from San Diego a short distance up the coast to

. After training for a few months the battalion then deployed in February–March 1943 to

Auckland Auckland ( ; ) is a large metropolitan city in the North Island of New Zealand. It has an urban population of about It is located in the greater Auckland Region, the area governed by Auckland Council, which includes outlying rural areas and ...

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

in preparation for combat in the Pacific theater. During World War II, the battalion was primarily armed with

Landing Vehicle Tracked The Amphibious Vehicle, Tracked (LVT or AMTRAC) is an amphibious warfare vehicle and Amphibious vehicle, amphibious landing craft, introduced by the United States Navy and United States Marine Corps. (The USN and USMC use ''L'' to designate ...

(LVT), specifically the

LVT LVT may refer to: * Land value tax, a levy on the value of land * Landing Vehicle Tracked The Amphibious Vehicle, Tracked (LVT or AMTRAC) is an amphibious warfare vehicle and Amphibious vehicle, amphibious landing craft, introduced by the ...

-2 also known as "WATER BUFFALOS". LVTs on Guam

The battalion fought in the following combat actions: * Bougainville with 124 LVT-1s *

Guam Guam ( ; ) is an island that is an Territories of the United States, organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. Guam's capital is Hagåtña, Guam, Hagåtña, and the most ...

with 193 LVT-2s and LVT-4s *

Iwo Jima is one of the Japanese Volcano Islands, which lie south of the Bonin Islands and together with them make up the Ogasawara Subprefecture, Ogasawara Archipelago. Together with the Izu Islands, they make up Japan's Nanpō Islands. Although sout ...

with 90 LVT-2s
LVTs on Iwo Jima

For its actions in World War II, 3rd Amphibian Tractor Battalion was awarded the Presidential Unit Citation Streamer, Asiatic-Pacific Campaign Medal Streamer With Four Bronze Stars, and the

World War II Victory Medal The World War II Victory Medal was a service medal of the United States military which was established by an Act of Congress on 6 July 1945 (Public Law 135, 79th Congress) and promulgated by Section V, War Department Bulletin 12, 1945. Histo ...

Streamer. At the conclusion of World War II the battalion redeployed in March 1945 to

Maui Maui (; Hawaiian language, Hawaiian: ) is the second largest island in the Hawaiian archipelago, at 727.2 square miles (1,883 km2). It is the List of islands of the United States by area, 17th-largest in the United States. Maui is one of ...

, territory of

Hawaii Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...

and then relocated during February 1946 back to Camp Pendleton, California. It was deactivated several months later on 1 May 1946.

1952 - 1966

3rd Amphibian Tractor Battalion was reactivated 1 April 1952 at Camp Pendleton, California, and assigned to

Fleet Marine Force The United States Fleet Marine Forces (FMF) are combined general and special forces within the United States Department of the Navy that perform offensive amphibious or expeditionary warfare and defensive maritime employment. The Fleet Marine ...

, Pacific. It was subsequently reassigned during October 1955 to the

. Elements participated in the

Cuban Missile Crisis The Cuban Missile Crisis, also known as the October Crisis () in Cuba, or the Caribbean Crisis (), was a 13-day confrontation between the governments of the United States and the Soviet Union, when American deployments of Nuclear weapons d ...

, October–December 1962 During this period the battalion was still armed with LVTs - transitioning primarily to the

LVT-5 The LVTP-5 (landing vehicle, tracked, personnel 5) is a family of amphibious armored fighting vehicles used by the Philippine Marine Corps, the Republic of China Marine Corps, and, formerly, the United States Marine Corps. It was designed by the ...

in the late 1950s.

Vietnam War and 1970s

3rd Amphibian Tractor Battalion deployed during February 1965 to

Camp Schwab Camp Schwab is a United States Marine Corps camp located in northeastern Okinawa Prefecture, Japan, that is currently home to the 4th Marine Regiment and other elements of the 28,000 American servicemen based on the island. The Camp was dedica ...

Okinawa most commonly refers to: * Okinawa Prefecture, Japan's southernmost prefecture * Okinawa Island, the largest island of Okinawa Prefecture * Okinawa Islands, an island group including Okinawa itself * Okinawa (city), the second largest city in th ...

and redeployed again in June 1965 to the

Republic of Vietnam South Vietnam, officially the Republic of Vietnam (RVN; , VNCH), was a country in Southeast Asia that existed from 1955 to 1975. It first garnered international recognition in 1949 as the State of Vietnam within the French Union, with it ...

. There the battalion fought in the

Vietnam War The Vietnam War (1 November 1955 – 30 April 1975) was an armed conflict in Vietnam, Laos, and Cambodia fought between North Vietnam (Democratic Republic of Vietnam) and South Vietnam (Republic of Vietnam) and their allies. North Vietnam w ...

from June 1966 - January 1970. During this conflict the battalion distinguished itself at: *

Chu Lai Chu Lai is a seaport, urban and industrial area in Núi Thành District, Quảng Nam Province, Vietnam. The city is served by Chu Lai International Airport. It is also the site of the Chu Lai Open Economic Zone (Vietnamese: ''Khu Kinh Tế M� ...

Da Nang Da Nang or DanangSee also Danang Dragons (, ) is the fifth-largest city in Vietnam by municipal population. It lies on the coast of the Western Pacific Ocean of Vietnam at the mouth of the Hàn River, and is one of Vietnam's most important p ...

* An Hoa * Hoi An Throughout Vietnam the battalion was armed with variants of the

. For its actions in Vietnam, 3rd Amtrac Battalion was awarded the Presidential Unit Citation Streamer,

Navy Meritorious Unit Commendation The Meritorious Unit Commendation (MUC; pronounced ''muck'') is a mid-level unit award of the United States Armed Forces. The U.S. Army awards units the Army MUC for exceptionally meritorious conduct in performance of outstanding achievement or ...

Streamer,

National Defense Service Medal The National Defense Service Medal (NDSM) is a service award of the United States Armed Forces established by President Dwight D. Eisenhower in 1953. It was awarded to every member of the U.S. Armed Forces who served during any one of four s ...

Streamer,

Vietnam Service Medal The Vietnam Service Medal was a military award of the United States Armed Forces established on 8 July 1965 by order of President Lyndon B. Johnson. The medal is awarded to recognize service during the Vietnam War by all members of the U.S. ...

Streamer With Two Silver Stars,

Vietnam Gallantry Cross The Republic of Vietnam Gallantry Cross also known as the Vietnamese Gallantry Cross or Vietnam Cross of Gallantry () is a military decoration of the former Government of South Vietnam (Republic of Vietnam). The medal was created on August 15, 1 ...

with Palm Streamer, and the Vietnam Civil Actions Medal Unit Citation Streamer. The battalion relocated during February 1970 to Camp Pendleton, California, and was reassigned to the 5th

Marine Expeditionary Brigade A Marine expeditionary brigade (MEB) is a formation of the United States Marine Corps, a Marine air-ground task force of approximately 14,500 Marines and sailors constructed around a reinforced infantry regiment, a composite Marine aircraft group ...

. It was again reassigned in August 1970 to the 5th Marine Amphibious Brigade. Subsequently, in April 1971 the battalion was reassigned to the 1st Marine Division with whom it remains to this day. In the early 1970s the battalion transitioned from the

to its replacement the LVT-7. On 30 December 1976 the battalion was re-designated from 3rd Amphibian Tractor Battalion to 3rd Assault Amphibian Battalion (written as 3rd AABn). The battalion participated in numerous training exercises throughout the remainder of the 1970s.

1980s

Throughout the 1980s, 3rd Assault Amphibian Battalion deployed companies on its regular schedule of six month deployments to the forward units in

and

, including units aboard amphibious troop ships for fast-reaction forces in the

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the cont ...

and

Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or approximately 20% of the water area of Earth#Surface, Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia (continent), ...

s and into the

Persian Gulf The Persian Gulf, sometimes called the Arabian Gulf, is a Mediterranean seas, mediterranean sea in West Asia. The body of water is an extension of the Arabian Sea and the larger Indian Ocean located between Iran and the Arabian Peninsula.Un ...

. It shared personnel and vehicles with the 1st Armored Assault Battalion as part of the Unit Deployment Program. In the early 1980s the battalion's LVT-7s underwent a Service Life Extension Program (SLEP), which converted the LVT-7 vehicles to the improved

-7A1 (AAV-7A1) by adding an improved engine, transmission, and weapons system and improving the overall maintainability of the vehicle. Upon realizing the need to mechanize units participating in the Combined Arms Exercises (CAX), two platoons of AAVs were transferred to the

(MCAGCC) in July 1979. Of the two platoons formed from Camp Pendleton, one went to Company A, 3d Tank Battalion, and the other platoon went to Company B, 3d Tank Battalion. The two platoons later merged and became Company D, 3rd Tank Battalion in September 1980. Two additional platoons from 3d Assault Amphibian Battalion in Hawaii arrived on board the MCAGCC in December 1981. A redesignation ceremony was held on 18 January 1982 in which the colors of Company D, 3rd Tank Battalion were formally retired and replaced with the new colors of Company D (Rein), 3d Assault Amphibian Battalion. The company was instrumental in training Marines in desert warfare as they rotated in and out of the live-fire desert training area, a key to the Marine Corp's success in the 1991

Gulf War , combatant2 = , commander1 = , commander2 = , strength1 = Over 950,000 soldiers3,113 tanks1,800 aircraft2,200 artillery systems , page = https://www.govinfo.gov/content/pkg/GAOREPORTS-PEMD-96- ...

. For its superior performance from 1983 to 1985, the battalion was awarded a

Desert Shield/Storm

In August 1990, 3rd AABn received orders to prepare for an overseas deployment to

Southwest Asia West Asia (also called Western Asia or Southwest Asia) is the westernmost region of Asia. As defined by most academics, UN bodies and other institutions, the subregion consists of Anatolia, the Arabian Peninsula, Iran, Mesopotamia, the Armenia ...

as a response to the

Iraqi invasion of Kuwait The Iraqi invasion of Kuwait, codenamed Project 17, began on 2 August 1990 and marked the beginning of the Gulf War. After defeating the State of Kuwait on 4 August 1990, Iraq went on to militarily occupy the country for the next seven months ...

. In the following month the unit deployed to

Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in West Asia. Located in the centre of the Middle East, it covers the bulk of the Arabian Peninsula and has a land area of about , making it the List of Asian countries ...

and received shipments of its

s from

Maritime Prepositioning ship Strategic sealift ships are part of the United States Military Sealift Command's (MSC) prepositioning program. There are currently 17 ships in the program, strategically positioned around the world to support the Army, Navy, Air Force, Marine Corp ...

s to augment its current vehicle ranks. During this time the battalion began upgrading its AAVP-7A1s to carry the UGWS (UpGunned Weapons Station), which mounts a .50 cal (12.7 mm) M2HB machine gun and a Mk-19 40 mm grenade launcher. In preparation for the assault into Kuwait, the battalion divided into two main mechanized infantry task forces, along with

1st First most commonly refers to: * First, the ordinal form of the number 1 First or 1st may also refer to: Acronyms * Faint Images of the Radio Sky at Twenty-Centimeters, an astronomical survey carried out by the Very Large Array * Far Infrared a ...

and 3rd Tank Battalions, to form Task Force Ripper and Task Force Papa Bear respectively. The units trained and patrolled the Saudi frontier with Kuwait until the start of the ground war in February 1991. After five days of combat the two task forces, along with other Marine task forces, British and Pan-Arab units, captured

Kuwait International Airport Kuwait International Airport (, ) is an international airport located in the Farwaniya Governorate, Kuwait, south of the centre of Kuwait City, spread over an area of . As of 2024 it is the 11th busiest airport in the Middle East. It serves a ...

and a cease-fire was announced. During the march to

Kuwait City Kuwait City (; ) is the capital and largest city of Kuwait. Located at the heart of the country on the south shore of Kuwait Bay on the Persian Gulf, it is the political, cultural and economic center of the emirate, containing Kuwait's Seif Pal ...

, the mechanized infantry task forces were responsible for the defeat of numerous Iraqi regiments, the capture of tens of thousands of Iraqi prisoners, and the capture or destruction of thousands of enemy armored vehicles. 3rd AABn returned to

in March 1991. For its actions during the Gulf War, the battalion was awarded a Streamer.

Navy Unit Commendation The Navy Unit Commendation (NUC) is a United States Navy and United States Coast Guard unit award that was established by order of the Secretary of the Navy James Forrestal on 18 December 1944. History Navy A navy, naval force, military m ...

Streamer,

Streamer, and the

Southwest Asia Service Medal The Southwest Asia Service Medal (SASM or SWASM) was a military award of the United States Armed Forces which was created by order of President George H.W. Bush on March 12, 1991. The award is intended to recognize those military service member ...

Streamer With Two Bronze Stars. 3dAmtrac in Mogadishu

Restore Hope

On 9 December 1992, elements of 3rd AABn attached to the 15th MEU landed on the beach just outside the

Mogadishu Mogadishu, locally known as Xamar or Hamar, is the capital and List of cities in Somalia by population, most populous city of Somalia. The city has served as an important port connecting traders across the Indian Ocean for millennia and has ...

International Airport in

Somalia Somalia, officially the Federal Republic of Somalia, is the easternmost country in continental Africa. The country is located in the Horn of Africa and is bordered by Ethiopia to the west, Djibouti to the northwest, Kenya to the southwest, th ...

in support of

Operation Restore Hope The Unified Task Force (UNITAF), also known as Operation Restore Hope, was a United States-led, United Nations-sanctioned multinational military force deployed to Somalia from 5 December 1992 to 4 May 1993. It was established to replace United ...

. These initial forces were soon followed by Bravo, Delta, and H&S Companies of 3rd AABn. These units' operations stretched from Mogadishu to Bardera, Baidoa, and Kismayo. The battalion served as a blocking force for the International Airport's reception of airlifted humanitarian supplies, then extended its services as road guards for supply convoys and foot patrols in and around

. Elements of 3rd AABn served in Somalia or off the coast aboard MEUs from 1992 until approximately 1995. For its actions during Operation Restore Hope, the battalion was awarded the

Joint Meritorious Unit Award The Joint Meritorious Unit Award (JMUA) is a US military award that was established on June 4, 1981, by Secretary of Defense Caspar Weinberger and was implemented by Department of Defense Directive 1348.27 dated July 22, 1982. The Joint Meritor ...

Streamer and the

Armed Forces Expeditionary Medal The Armed Forces Expeditionary Medal (AFEM) is a military award of the United States Armed Forces, which was first created in 1961 by Executive Order of President John F. Kennedy. The medal is awarded to members of the U.S. Armed Forces who, a ...

Streamer.

Global War on Terror

In 2003, 3rd AABn participated in

Operation Iraqi Freedom The Iraq War (), also referred to as the Second Gulf War, was a prolonged conflict in Iraq lasting from 2003 to 2011. It began with the invasion by a United States-led coalition, which resulted in the overthrow of the Ba'athist governm ...

as part of the

. They first deployed in February 2003 to Kuwait and crossed the border into Iraq in March, attacking all the way to

Baghdad Baghdad ( or ; , ) is the capital and List of largest cities of Iraq, largest city of Iraq, located along the Tigris in the central part of the country. With a population exceeding 7 million, it ranks among the List of largest cities in the A ...

. The battalion served as the primary mechanized assault support for the infantry and proved to be an invaluable asset in crossing the vast distances and urban areas of Iraq. Companies from 3rd AABn continue to deploy to Iraq on a regular basis in support of

Multi-National Forces West Multi-National Forces West (MNF-W) or United States Forces West (USF-W) was one of the coalition headquarters under Multi-National Force-Iraq. It was headquartered by either I or II U.S. Marine Expeditionary Force that rotated on a 12-month basis. ...

(MNF-W). In the Al Anbar province they conduct all manner of operations ranging from traditional infantry mechanized assault support to acting independently as motorized forces patrolling vast urban and desert areas. In 2010, the battalion was deployed to Helmand Province, Afghanistan. During that deployment the battalion suffered a casualty; Corporal Julio Vargas, who was killed by an IED on July 20. Marine Cpl. Julio Vargas Died July 20, 2010 Serving During Operation Enduring Freedom
/ref>

Awards

To date, the battalion's actions in support of the Global War on Terror have earned it a Presidential Unit Citation Streamer,

Streamer,

Global War on Terrorism Expeditionary Medal The Global War on Terrorism Expeditionary Medal (GWOT-EM) is a United States Armed Forces award created by George W. Bush on 12 March 2003, through Executive Order 13289. The medal recognizes those military service members who have deployed over ...

Streamer, and the

Global War on Terrorism Service Medal The Global War on Terrorism Service Medal (GWOT-SM) is a military award of the United States Armed Forces which was created through Executive Order 13289 on 12 March 2003, by President George W. Bush. The medal recognizes those military service ...

Streamer.

Notable former members

* Justin LeHew - One of the most highly decorated US Servicemen serving in the war on terror. Recipient of the

Navy Cross The Navy Cross is the United States Naval Service's second-highest military decoration awarded for sailors and marines who distinguish themselves for extraordinary heroism in combat with an armed enemy force. The medal is equivalent to the Army ...

for action during the

Battle of Nasiriyah The Battle of Nasiriyah was fought between the US 2nd Marine Expeditionary Brigade and Iraqi forces from 23 March to 2 April 2003 during the US-led invasion of Iraq. On the night of 24–25 March, the bulk of the Marines of Regimental Comb ...

in 2003. Recipient of the

Bronze Star Medal The Bronze Star Medal (BSM) is a Awards and decorations of the United States Armed Forces, United States Armed Forces decoration awarded to members of the United States Armed Forces for either heroic achievement, heroic service, meritorious a ...

with combat "V" for actions during the battle of Najaf 2004.