2nd Marine Division

2nd Marine Division
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Unit name	2nd Marine Division
Caption	Shoulder sleeve insignia of the division
Dates	1941–present
Country	United States
Branch	United States Marine Corps
Type	Marine division
Role	Amphibious warfare, Expeditionary warfare
Size	Division
Command structure	II Marine Expeditionary Force
Garrison	Camp Lejeune, North Carolina
Nickname	"The Silent Second"
Motto	"Follow Me"
Notable commanders	Alexander Vandegrift, Gerald C. Thomas, George R. Christmas

2nd Marine Division is an infantry division-sized formation of the United States Marine Corps assigned to II Marine Expeditionary Force and based at Camp Lejeune. The division has participated in major World War II campaigns including Guadalcanal campaign, Tarawa, and Saipan and later in Cold War, Vietnam War, Gulf War, and 21st-century operations such as Operation Iraqi Freedom and Operation Enduring Freedom. It comprises infantry, artillery, armored, reconnaissance, and support units and has earned multiple unit decorations for combat performance.

History

The division was activated during the lead-up to World War II at San Diego, later reorganized and deployed to the Pacific Ocean theater of World War II where it fought in the Guadalcanal campaign, Battle of Tarawa, Battle of Saipan, and Battle of Okinawa under commanders including Alexander Vandegrift and Holland M. Smith. Postwar drawdown preceded Cold War reconstitution at Camp Lejeune, where the division supported NATO exercises in Europe and contingency deployments to Lebanon and the Mediterranean Sea during crises such as the Suez Crisis era and the Lebanon crisis of 1958. Elements of the division served in the Vietnam War with campaigns in Quảng Nam Province and operations tied to Operation Hastings, later returning to Camp Lejeune to reset and modernize with systems like the M198 howitzer and M60A1 tank replacements. During the Gulf War, the division provided ground combat power for Operation Desert Shield and Operation Desert Storm. In the 21st century, subordinate regiments deployed to Iraq for Operation Iraqi Freedom and to Afghanistan for Operation Enduring Freedom, while participation in Humanitarian assistance and multinational exercises such as Operation Bright Star and Trident Juncture showcased expeditionary capabilities.

Organization and Structure

The division is organized into a headquarters element and three infantry regiments plus supporting units: 5th Marine Regiment, 6th Marine Regiment, and 8th Marine Regiment, each consisting of battalions like 1st Battalion, 6th Marines and 2nd Battalion, 5th Marines, along with 10th Marine Regiment for artillery. Armor and reconnaissance components have included units such as 2nd Light Armored Reconnaissance Battalion and 2nd Reconnaissance Battalion, while combat engineers and logistics are provided by elements including 2nd Combat Engineer Battalion and 2nd Supply Battalion. Aviation support is provided by squadrons from 2nd Marine Aircraft Wing during combined operations, and command relationships tie to II Marine Expeditionary Force for joint and combined tasking. The division follows Marine Corps doctrinal structures codified in publications like MCDP 1 with combined-arms task organization to form a Marine Air-Ground Task Force.

Combat Operations and Deployments

In World War II, the division executed classic amphibious assaults at Tarawa Atoll and Saipan, overcoming entrenched defenses in coordination with United States Navy carrier and battleship gunfire and Marine Corps close air support from Corps Aviation assets. During the Korean War era the division was held as a strategic reserve, later deploying units to Vietnam where regimental operations interlaced with I Corps (South Vietnam) area responsibilities and counterinsurgency operations. In Operation Desert Storm, 2nd Marine Division forces conducted breaching operations as part of coalition maneuvers against Iraqi Armed Forces, linking with VII Corps-aligned formations and utilizing combined-arms tactics. In the 2000s, regiments and battalions oscillated between Iraq provinces including Al Anbar Governorate and Afghan provinces like Helmand Province, conducting counterinsurgency, route security, and partnered operations with Iraqi Security Forces and Afghan National Army. The division has taken part in multinational training exercises with partners such as United Kingdom, France, Canada, NATO members, and regional partners during deployments to the Mediterranean Sea and European Union exercises.

Unit Honors and Awards

Units of the division have received awards including Presidential Unit Citation for actions in Guadalcanal and Tarawa, Navy Unit Commendation citations for later campaigns, and foreign decorations from allied governments for coalition operations. Individual Marines and sailors assigned to division units have been awarded top decorations such as the Medal of Honor, Navy Cross, and Silver Star for valor in engagements across World War II, Vietnam War, and 21st-century conflicts. Regimental and battalion streamers display campaign credits for the Asiatic-Pacific Campaign Medal, National Defense Service Medal periods, and Southwest Asia Service Medal for Gulf War service, reflected in unit heraldry and colors.

Notable Commanders and Personnel

Prominent leaders who commanded or served with division units include Alexander Vandegrift (later Commandant), Gerald C. Thomas, George R. Christmas, and other officers who later held high posts in the United States Marine Corps and joint services. Distinguished enlisted and officer veterans associated with division actions include recipients of the Medal of Honor from Pacific campaigns and combat leaders who later contributed to doctrine, such as proponents of amphibious assault techniques and counterinsurgency practice. The division’s veteran alumni network includes figures who served in international staff roles at NATO headquarters, United States European Command, and in civilian defense policy positions.

Equipment and Insignia

Historically and presently, the division has employed equipment such as the M1 Abrams, LAV-25, AAV-7A1, M777 howitzer, HIMARS, and infantry systems like the M4 carbine, M249 light machine gun, and anti-armor assets including the FGM-148 Javelin. Aviation support for division operations has included aircraft from 2nd Marine Aircraft Wing such as AH-1Z Viper and MV-22 Osprey in expeditionary roles. The division shoulder sleeve insignia and distinctive unit insignia reflect heraldic elements linked to the division’s history; colors and campaign streamers on the division flag denote theaters such as the Asiatic-Pacific Theater and later conflict theaters. Maintenance of readiness follows Marine Corps logistics and readiness frameworks like Marine Corps Combat Readiness Evaluation standards, integrating organic and attached combat support and combat service support capabilities.

Category:United States Marine Corps divisions