1st Battalion, 25th Marines was originally established in Boston, Massachusetts as an infantry company in the early 1920s. It was not until some years later that the unit attained battalion status.

In April 1926, Captain John J. Flynn was named the commanding officer of the 301st company, USMCR, with headquarters at the Marine Barracks, Charlestown Navy Yard. Building 5, the Navy officers mess, was used for drill and formation until the company was called to active duty on November 8, 1940.

During its varied and illustrious history, the 1st Battalion, 25th Marines has undergone some re designations, from its beginning as the 301st Company, the battalion has been variously redesignated as an artillery company (December 29, 1928); the 301st infantry company (December 1, 1929); Company A, 1st Battalion, 19th Reserve Marines (February 15, 1933); 2nd Battalion, Fleet Marine Corps Reserve (February 1, 1935) — at that point, a battalion had an authorized strength of 256 men, comparable to an infantry company in today's table of organization.

There was an especially critical period in the life of New England's Own from 1931 to 1934. During those years, Congress discontinued all drill and administrative pay. Those stalwarts who stayed with the organization did so voluntarily. New members were required to purchase their own uniforms. The fact that the battalion survived this critical period is a banner on their history.


On May 1, 1943, the 1st Battalion, 25th Marines was formed at Camp LejeuneNorth Carolina, and was then shipped off to Camp PendletonCalifornia, to be assigned to the 4th Marine Division.

During the war, the 1st Battalion, 25th Marines saw action in the following Island-hopping campaigns: KwajaleinBattle of SaipanBattle of Tinian, and the Battle of Iwo Jima. The battalion played a critical role in the seizure of Hill 382 (Turkey Knob) in an area that Marines on Iwo Jima called "the meat grinder". For its actions, the battalion earned a Presidential Unit Citation. The battalion saw no further action during the war due to having to rebuild the battalion after the heavy losses on Iwo Jima. The battalion was deactivated on October 31, 1945.

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On July 1, 1962, the battalion was reorganized and redesignated in conjunction with the new concept and mission of the Marine Corps Reserve as the 1st Battalion, 25th Marines, 4th Marine Division, Fleet Marine Force, Massachusetts. On September 30, 1977, the headquarters was relocated to Camp EdwardsCape Cod, Massachusetts.

Since its reorganization in 1962, the battalion has participated in a variety of training experiences, including desert maneuvers at 29 Palms, California; amphibious training in Little Creek, Virginia; Mountain Warfare Training at Bridgeport, California; cold weather training in Norway, and numerous field exercises at Camp Lejeune, North Carolina. Attesting to the effective role that the unit played in these and other programs, the 1st Battalion, 25th Marines received the General Harry Schmidt trophy for the most combat ready battalion in the 4th Marine Division in 1970, 1989, and 1990.


On November 25, 1990, the battalion was again called to active duty to serve in the Gulf War against Iraq. The battalion moved to Camp Lejeune, North Carolina, and was promptly move into Kuwait theater operations on December 29, 1990. The battalion was assigned as an independent battalion within the 1st Marine Division. While attached to the 1st Marine Division, it performed a variety of missions to include rear area security and enemy prisoner of war (POW) control. The battalion was with the frontline units during the war, which made it one of the few reserve units to see frontline service. During the ground offensive the battalion was to receive the responsibility of controlling over 8,500 Iraq POWs and processing them to rear areas of the 1st Marine Division. The battalion was returned to the United States in April 1991 and was deactivated at Camp Edwards, Massachusetts.

On June 9, 2000, the headquarters was relocated to Devens Reserve Forces Training Area (RFTA), Massachusetts. The battalion is still performing its mission of training for the possible call-up for active service in times of national emergency. Today the battalion is spread over the New England area with the Headquarters and Service Company along with the Weapons Company located at Devens RFTA. Company A is located at Topsham, Maine; Company B is located at Londonderry, New Hampshire; and Company C is located at Buffalo, New York


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In January 2003, the battalion was activated in support of Operation Enduring Freedom. After a work-up at Camp Lejuene, NC, the battalion's Alpha, Bravo, Charlie, Weapons, and H & S Companies were deployed to the Pacific and Mid-East (Okinawa, the Philippines, Korea, and Bahrain) carrying out Security and Training missions (i.e. Security Force for Ulchi Focus Lens {Korea} & Exercise Talon Vision {Philippines}) . Charlie Co. operated and conducted missions out of Bahrain where its detachments of Marines conducted security operations in the Persian Gulf as well as the Iraqi territorial waters to include the Euphrates River.

On 21 March 2006, after three months of training at the Marine Corps Air Ground Combat Center Twentynine Palms, California, the battalion was deployed to the exceptionally violent province of Anbar in Iraq, then the headquarters of al-Qaeda in Iraq and its leader, Abu Musab al-Zarqawi. The deployment was expected to last seven months.

During the deployment, 1/25 operated in the city of Fallujah under the command of Regimental Combat Team 5, led by Colonel Larry Nicholson. Fallujah had previously served as the primary insurgent stronghold in Iraq until American forces launched a bloody campaign in November 2004 to re-take the city in what is known as the Second Battle of Fallujah. By the time 1/25 deployed to al-Anbar, al-Qaeda in Iraq had re-established its headquarters further west in the provincial capital of Ramadi, leading to the 2006 Battle of Ramadi, in which some 1/25 Marines provided direct support to.

The battalion performed thousands of patrols throughout Fallujah and the surrounding areas, and participated in a number of regimental sized operations. During this same timeframe, US forces made significant progress in eliminating some of al-Qaeda in Iraq's top leadership: a 7 June 2006 airstrike killed al-Zarqawi and his spiritual advisor Sheik Abd-Al-Rahman while the organization's reputed second-in-command, Hamid Juma Faris Jouri al-Saeedi, was captured in a joint US/Iraqi raid on 19 June 2006.

In October 2006, the unit returned home to New England. Attachments from 2nd Battalion 25th Marines and the Oklahoma "TOW" Unit returned to their respective drill centers. Eleven members of the battalion were killed in action, while a total of 141 Marines were killed in Anbar during the seven calendar months that 1/25 was deployed.

In August 2011 the battalion was deployed to both Helmand and Nimroz Provinces, Afghanistan to conduct combat operations in support of Operation Enduring Freedom.


"Marines don't know how to spell the word defeat"

- General James Mattis