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378,917 members•1,273 units
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378,917 members•1,273 units
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1st Marine Division
U.S. Marine Corps
The 1st Marine Division, activated in February 1941, is the oldest and most decorated division in the United States Marine Corps. It earned its legendary reputation during World War II, particularly at Guadalcanal, Peleliu, and Okinawa. The division also played pivotal roles in the Korean War, most notably during the Battle of Inchon and the Chosin Reservoir. Since then, the 1st Marine Division has served in major conflicts including Vietnam, the Gulf War, Iraq, and Afghanistan, consistently upholding its motto: "No better friend, no worse enemy."
Marine Corps Reserve
U.S. Marine Corps
The Marine Corps Reserve, officially established in 1916 by the Naval Appropriations Act, serves as the reserve component of the United States Marine Corps. Throughout its history, the Reserve has played a crucial role in augmenting active-duty forces during major conflicts, including World War I, World War II, Korea, Vietnam, and the Global War on Terror. Reserve Marines have provided combat power, specialized skills, and community support in both wartime and peacetime operations. Today, the Marine Corps Reserve remains a vital force, capable of rapidly mobilizing to support national defense and humanitarian missions worldwide.
3:6th Marines
U.S. Marine Corps
The 3rd Battalion, 6th Marine Regiment (3/6), nicknamed "Teufelhunden," was activated in 1917 and quickly distinguished itself in World War I, fighting in battles such as Belleau Wood and Soissons. During World War II, the battalion participated in the Guadalcanal, Tarawa, and Saipan campaigns, earning multiple Presidential Unit Citations. In more recent history, 3/6 has deployed in support of operations in Iraq and Afghanistan, taking part in major campaigns such as Operation Iraqi Freedom and Operation Enduring Freedom. Renowned for its combat effectiveness and esprit de corps, 3/6 remains a vital infantry battalion within the 2nd Marine Division.
3:2nd Marines
U.S. Marine Corps
The 3rd Battalion, 2nd Marines (3/2), known as "Betio Bastards," is an infantry battalion of the United States Marine Corps based at Camp Lejeune, North Carolina. Activated in 1941, 3/2 participated in major World War II campaigns, including the Battle of Tarawa, earning its nickname for actions on Betio Island. The battalion has seen combat in numerous conflicts, such as the Gulf War, Operation Iraqi Freedom, and Operation Enduring Freedom in Afghanistan. Renowned for its operational effectiveness, 3/2 continues to serve as a rapid response force, upholding a distinguished legacy in Marine Corps history.

3RD RECON BN
U.S. Marine Corps
The 3rd Reconnaissance Battalion (3RD RECON BN) is a United States Marine Corps reconnaissance unit with a distinguished history dating back to its activation in 1943 during World War II. The battalion has participated in major conflicts including World War II, the Vietnam War, and the Global War on Terrorism, providing critical intelligence and surveillance for Marine operations. Notably, during the Vietnam War, 3RD RECON BN conducted deep reconnaissance and direct action missions, often operating behind enemy lines. Today, the battalion remains an essential element of the 3rd Marine Division, stationed in Okinawa, Japan, and continues to support expeditionary operations across the Indo-Pacific region.
3rd Marine Division (Rein), FMF
U.S. Marine Corps
The 3rd Marine Division (Reinforced), Fleet Marine Force (FMF), was activated on September 16, 1942, at Camp Elliott, California, and quickly distinguished itself during World War II in the Pacific Theater, notably at Bougainville, Guam, and Iwo Jima. Following World War II, the division was reactivated in 1952 and later deployed to Okinawa, Japan, establishing a forward presence in the Asia-Pacific region. The 3rd Marine Division played a crucial role during the Vietnam War, conducting major combat operations such as at Khe Sanh and along the Demilitarized Zone (DMZ). Today, the division remains headquartered on Okinawa, serving as a key rapid-response force for the United States Marine Corps in the Indo-Pacific.
1:5th Marines
U.S. Marine Corps
The 1st Battalion, 5th Marines (1/5), known as "Geronimo," is one of the most decorated infantry battalions in the United States Marine Corps. Activated in 1917, it earned distinction during World War I at Belleau Wood and Soissons. The battalion saw extensive combat in World War II, Korea, and Vietnam, participating in key operations such as Guadalcanal, Peleliu, and Hue City. In the 21st century, 1/5 has deployed to Iraq and Afghanistan, continuing its legacy of excellence and valor in modern conflicts.
1:1
U.S. Marine Corps
**1st Battalion, 1st Marines (1/1) Military History:** The 1st Battalion, 1st Marines (1/1), known as "The First of the First," was activated in 1940 and has served as a key infantry battalion of the 1st Marine Division. During World War II, 1/1 fought in major battles such as Guadalcanal, Peleliu, and Okinawa. The battalion also saw extensive combat in the Korean War, including the Inchon landing and the Chosin Reservoir campaign, and later participated in the Vietnam War, Operations Desert Shield/Desert Storm, and Operation Iraqi Freedom. Throughout its distinguished history, 1/1 has earned a reputation for valor, resilience, and excellence in combat operations.
2:1ST MARINES
U.S. Marine Corps
2nd Battalion, 1st Marines (2/1), known as "The Professionals," is a distinguished infantry battalion of the United States Marine Corps. Activated in 1933, 2/1 first saw major action during World War II, participating in pivotal battles such as Guadalcanal, Peleliu, and Okinawa. The battalion continued its legacy in the Korean War, notably fighting at Inchon, Seoul, and the Chosin Reservoir. In modern times, 2/1 has deployed to Iraq and Afghanistan, upholding its tradition of excellence and valor in combat operations worldwide.
U.S. Marine Corps Descendant (2026 - Present)
U.S. Marine Corps Spouse (2026 - Present)
U.S. Marine Corps Military Retiree (2026 - Present)
U.S. Marine Corps Other (2025 - Present)