Activated 1 August 1922 at Santo Domingo, Dominican Republic, as the 2nd Battalion, 1st Regiment and assigned to the 2nd Brigade.
Participated in the occupation of the Dominican Republic, Deactivated 20 July 1924
1941 - 1947
Reactivated 1 March 1941 at Guantanamo Bay, Cuba, as the 2nd Battalion, 1st Marines and assigned to the 1st Marine Division, fleet Marine Force
Deployed during April 1941 to Parris Island, SC
Deactivated 14 June 1941
Reactivated 11 February 1942 at New River, NC, and assigned to the 1st Marines Division, Fleet Marine Force
Deployed during July 1942 to Wellington, New Zealand
Participated in the following World War II campaigns
* Guadalcanal
* Finschhafen
* New Britain
* Peleliu
* Okinawa
Redeployed during September 1945 to Tiensin, China
Participated in the occupation of North China, September 1945-October 1947
1950 - 1964
Reactivated 4 August 1950 at Camp Lejuene, North Carolina, and assigned to the 1st Marine Division, Fleet Marine Force
Deployed during August 1950 to Kobe, Japan
Participated in the Korean War, September 1950-July 1953, Operating from
* Inchon-Seoul
* Chosin Reservoir
* East Central
* Western Front
Participated in the defense of the Korean demilitarized zone July 1953 - April 1955
Relocated to Camp Pendleton, CA in April 1955
Participated in the Battalion transplacement system between the 1st Marine Division and the 3rd Marine Division during June 1959 - July 1960
Participated in the Cuban Missile Crisis, October-December 1962
1965 - 1974
Deployed during November 1965 to the Republic of Vietnam, and assigned to the 3rd Marine Division, Fleet Marine Force
Participated in the War in Vietnam, November 1965-May 1971, Operating from
* Hue/Phu Bai
* Da Nang
* Quang Tri
* Thua Thien
* Quang Nam
Detached during April 1971 from the 1st Marine Division, and reassigned to the 3rd Marine Amphibious Brigade, Fleet Marine Force
Relocated during June 1971 to Camp Pendleton, CA, and reassigned to the 1st Marine Division, Fleet Marine Force
1975 - 1994
Participated during April - May 1975 in Operation New Arrival, the relocation of refugees from Indochina
Participated in numerous training exercises during the 1970's and 1980's
Participated in the Battalion rotation between the 3rd Marine Division on Okinawa and Divisions stationed in the United States during the 1980's
Deactivated 24 January 1989
Reactivated 9 September 1994 at Camp Pendleton, CA, and assigned to the 1st Marine Division
2003 - 2006
Participated from January to June 2003 in Operation Enduring Freedom I with the 15th MEU.
Participated from February to October 2004 in Operation Iraqi Freedom II wi 1st Marine Division.
Participated from October 2005 to December 2005 in Operation Iraqi Freedom 04-06 with 2nd Marine Division and the 13th MEU.
Notable Persons
Medal Honor - Vietnam -
PFC DeWayne Thomas Williams
Private First Class Dewayne Thomas Williams (MCSN: 2420506), United States Marine Corps, for conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty on 18 September 1968, while serving as a rifleman with the First Platoon, Company H, Second Battalion, First Marines, FIRST Marine Division (Reinforced), Fleet Marine Force, in action against communist insurgent forces in Quang Nam Province, Republic of Vietnam.
Medal Honor - Vietnam -
LCpl Emillio A De La Garza, Jr.
Lance Corporal Emilio Albert De La Garza, Jr., United States Marine Corps, for conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty on 11 April 1970, while serving as a machine gunner with Company E, Second Battalion, First Marines, FIRST Marine Division (Reinforced), Fleet Marine Force, near DaNang, Republic of Vietnam
Medal Honor - Vietnam -
PFC Gary Wayne Martini
Private First Class Gary Wayne Martini (MCSN: 2217825), United States Marine Corps, for conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty while serving with Company F, Second Battalion, First Marines, FIRST Marine Division (Reinforced), Fleet Marine Force, in action against enemy forces near Binh Son, Republic of Vietnam.
Description
This campaign was from 2 April to 30 June 1968. During this period friendly forces conducted a number of battalion-size attritional operations against the enemy.
Operations PEGASUS-Lam Son 207 relieved the Khe Sanh Combat Base on 5 April and thereby opened Route 9 for the first time since August 1967. This operation not only severely restricted the North Vietnamese Army's use of western Quang Tri Province but also inflicted casualties on the remnants of two North Vietnamese divisions withdrawing from the area. This success was followed by a singular allied spoiling operation in the A Shau Valley, Operation DELAWARE-Lam Son. These two operations prevented the enemy from further attacking I Corps Tactical Zone population centers and forced him to shift his pressure to the III Corps Tactical Zone.
During the period 5-12 May 1968 the Viet Cong launched an offensive with Saigon as the primary objective. Friendly forces defended the city with great determination. Consequently Saigon was never in danger of being overrun. Small Viet Cong units that did manage to get into the outskirts were fragmented and driven out with great loss of enemy life. By the end of June 1968 friendly forces had decisively blunted the enemy's attacks, inflicted very heavy casualties, and hindered his ability to attack urban areas throughout the Republic of Vietnam. The enemy was forced to withdraw to his sanctuaries.
The strength of the U.S. Army in Vietnam reach a peak of nearly 360,000 men during this period.
