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378,934 members•1,273 units
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378,934 members•1,273 units
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MCB-133
U.S. Marine Corps
Naval Mobile Construction Battalion 133 (MCB-133), also known as the "Runnin' Roos," was commissioned on February 17, 1944, during World War II as part of the U.S. Navy Seabees. The battalion played a crucial role in constructing airfields, bases, and infrastructure across the Pacific theater, including operations in Guam and Okinawa. In the decades following WWII, MCB-133 participated in numerous deployments during the Korean and Vietnam Wars, supporting both combat and humanitarian missions. The unit continued to serve in peacetime operations, disaster relief, and overseas contingency deployments until its decommissioning in 2005.
H&S Battallion Parris Island MCRD
U.S. Marine Corps
Headquarters and Service (H&S) Battalion, Parris Island, Marine Corps Recruit Depot (MCRD), serves as the backbone of support for one of the Marine Corps’ most storied training installations. Established to provide essential administrative, logistical, and operational support, H&S Battalion ensures the smooth functioning of recruit training and the daily operations of the depot. Over the decades, the battalion has played a critical role in sustaining the mission of transforming thousands of recruits into United States Marines. Its personnel manage a wide array of responsibilities, from security and communications to personnel management, contributing to Parris Island’s legacy as the birthplace of Marine Corps enlisted training.
HMX-1
U.S. Marine Corps
HMX-1, or Marine Helicopter Squadron One, was established on December 1, 1947, at Quantico, Virginia, making it the first United States Marine Corps helicopter squadron. Originally created to test and evaluate rotary-wing aviation, HMX-1 quickly gained prominence for its role in helicopter assault tactics during the Korean War. In 1957, HMX-1 began its most famous mission: providing helicopter transportation for the President of the United States, earning the call sign "Marine One" when the president is aboard. Today, HMX-1 continues to support presidential transport, distinguished visitors, and operational test and evaluation missions, upholding its legacy as one of the most prestigious aviation units in the Marine Corps.
NMCB-4
U.S. Marine Corps
Naval Mobile Construction Battalion FOUR (NMCB-4), known as the "Pioneers," was first commissioned in 1942 during World War II to support Pacific theater operations. The battalion played a vital role in constructing airfields, bases, and infrastructure across the Pacific islands, enabling Allied advances. Since World War II, NMCB-4 has participated in numerous conflicts and humanitarian missions, including Vietnam, the Gulf War, and disaster relief efforts worldwide. Renowned for their "Can Do" spirit, NMCB-4 continues to provide critical construction and engineering support to the U.S. Navy and joint forces globally.
1st Amtracs
U.S. Marine Corps
The 1st Amphibian Tractor Battalion (1st Amtracs) was activated in February 1942 as part of the United States Marine Corps during World War II. The battalion played a crucial role in the Pacific Theater, providing amphibious assault and landing support during major campaigns such as Tarawa, Saipan, and Iwo Jima. After World War II, 1st Amtracs continued to serve with distinction in Korea and later Vietnam, adapting to evolving amphibious warfare needs with new generations of amphibious vehicles. The unit’s legacy endures as a pioneer in amphibious operations and a key component of Marine Corps expeditionary capabilities.
1st marines
U.S. Marine Corps
The 1st Marines, also known as the 1st Marine Regiment, is one of the oldest and most decorated regiments in the United States Marine Corps. Activated in 1913, the regiment saw early service in the Caribbean and later distinguished itself during World War II, notably at Guadalcanal, Peleliu, and Okinawa. During the Korean War, the 1st Marines played a key role in the Inchon landing and the Chosin Reservoir campaign. The regiment has since served in Vietnam, the Gulf War, and more recent operations in Iraq and Afghanistan, continuing its legacy of valor and service.
2:26th Marines
U.S. Marine Corps
The 2nd Battalion, 26th Marines (2/26) was an infantry battalion of the United States Marine Corps, first activated during World War II. The unit saw extensive combat during the Vietnam War, where it participated in operations such as the defense of Khe Sanh during the 1968 siege, Operation Kingfisher, and various actions in the Quang Tri and Thua Thien provinces. The battalion earned a reputation for its resilience under fire and effectiveness in both defensive and offensive operations. 2/26 was deactivated in the early 1970s as part of postwar force reductions.
3RD BATALLION, 7TH MARINES
U.S. Marine Corps
The 3rd Battalion, 7th Marines (3/7), was activated in 1941 and has a storied history within the United States Marine Corps. The battalion distinguished itself during World War II, particularly in the battles of Guadalcanal, Peleliu, and Okinawa. During the Korean and Vietnam Wars, 3/7 participated in numerous significant operations, earning many unit commendations. In recent decades, 3/7 has deployed multiple times in support of operations in Iraq and Afghanistan, continuing its legacy of excellence and valor in combat.
1:14th Marines
U.S. Marine Corps
The 1st Battalion, 14th Marine Regiment (1/14th Marines) was a reserve artillery battalion of the United States Marine Corps, first activated during World War II. The unit distinguished itself in the Pacific Theater, supporting major campaigns such as the Battle of Iwo Jima, where its accurate and sustained firepower proved vital to the success of Marine infantry assaults. After the war, 1/14th Marines was deactivated and reactivated several times, serving as a key reserve artillery asset during the Cold War and in the Global War on Terror. The battalion's final deactivation occurred in 2017, as part of a broader restructuring of Marine Corps reserve artillery forces.
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)