USMC
378,932 members•1,273 units
Opening branch overview
Building the branch home surface
Loading branch highlights, featured unit context, and gallery moments.
Overview
Members
Units
Over 3,064,780 active members
378,932 members•1,273 units
Building the branch home surface
Loading branch highlights, featured unit context, and gallery moments.
Building the branch members surface
Loading branch members, era browse tools, and directory controls.
NMCB-74
U.S. Marine Corps
Naval Mobile Construction Battalion 74 (NMCB-74), known as the "Swamp Fox Battalion," was commissioned in 1943 during World War II. Throughout its history, NMCB-74 participated in major conflicts, including World War II, the Vietnam War, and the Gulf War, providing critical construction and engineering support to the U.S. Navy and Marine Corps. The battalion was renowned for its ability to rapidly build airfields, roads, and bases in challenging environments, often under enemy fire. After decades of distinguished service, NMCB-74 was decommissioned in 2014 as part of a broader reorganization of the Navy's Seabee forces.
1:13th Marines
U.S. Marine Corps
The 1st Battalion, 13th Marines (1/13th Marines) is an artillery battalion of the United States Marine Corps, originally activated during World War II. The unit provided critical fire support in the Pacific theater, notably participating in the battles of Iwo Jima and Okinawa. Reactivated for the Vietnam War, 1/13th Marines supported Marine infantry operations with artillery fire throughout the conflict. Over the decades, the battalion has continued to serve as a vital element of the Marine Corps’ artillery capabilities, participating in training exercises and deployments in support of U.S. military operations worldwide.
2:12th Marine
U.S. Marine Corps
The 2nd Battalion, 12th Marines (2/12) is an artillery battalion of the United States Marine Corps, originally activated in 1942 during World War II. The battalion participated in key Pacific campaigns, including the battles of Guadalcanal, Saipan, Tinian, and Okinawa, providing vital fire support for Marine infantry units. After the war, 2/12 was deactivated and reactivated multiple times, serving in conflicts such as the Vietnam War, where it supported operations throughout I Corps. In recent decades, 2/12 has continued to deploy in support of global operations, maintaining readiness as part of the 3rd Marine Division based in Okinawa, Japan.
NMCB-5
U.S. Marine Corps
Naval Mobile Construction Battalion FIVE (NMCB-5), known as the "Professionals," is a distinguished unit of the United States Navy Seabees first commissioned in 1942. Throughout World War II, NMCB-5 played a critical role in the Pacific Theater, constructing bases, airfields, and vital infrastructure in locations such as Guadalcanal and Okinawa. The battalion has since supported operations in Korea, Vietnam, the Persian Gulf, and during major humanitarian missions worldwide. Today, NMCB-5 remains an essential rapid-response engineering force, providing construction and disaster relief support wherever needed.
Women Marines
U.S. Marine Corps
The Women Marines, formally known as the United States Marine Corps Women's Reserve, was established in February 1943 during World War II to allow women to serve in non-combat roles and free men for combat duty. Over 20,000 women enlisted during the war, performing crucial tasks such as clerical work, communications, logistics, and more. After the war, the Women's Armed Services Integration Act of 1948 allowed women to serve as permanent, regular members of the Marine Corps. Since then, Women Marines have continued to break barriers, serving in an ever-expanding range of roles, including combat positions, and playing a vital part in the Corps' mission.
9TH COMM BN
U.S. Marine Corps
The 9th Communication Battalion (9th Comm Bn) is a United States Marine Corps unit that provides communication support to Marine forces, primarily within the I Marine Expeditionary Force (I MEF). Activated in 1967, the battalion has served in numerous operations, including deployments to Iraq and Afghanistan, where it ensured robust command and control capabilities for combat and humanitarian missions. Over the decades, 9th Comm Bn has been at the forefront of integrating advanced communications technology, supporting both tactical and strategic objectives. The unit continues to play a vital role in enabling the rapid, secure flow of information across Marine Corps operations worldwide.
Fleet Anti-Submarine Warfare San Diego
U.S. Marine Corps
Fleet Anti-Submarine Warfare San Diego, also known as Fleet Anti-Submarine Warfare Training Center (FASWTC), was established in 1960 to enhance the United States Navy’s anti-submarine warfare (ASW) capabilities during the Cold War. Located on Point Loma in San Diego, California, the center provided specialized training for Navy personnel in detecting, tracking, and neutralizing enemy submarines. Over the decades, FASWTC adapted to advancements in submarine and ASW technologies, incorporating state-of-the-art simulators and tactics into its curriculum. The training center continues to serve as a vital hub for ASW education, supporting fleet readiness and undersea warfare dominance for the U.S. Navy and its allies.
1:25th Marines
U.S. Marine Corps
The 1st Battalion, 25th Marines (1/25) is a distinguished infantry battalion of the United States Marine Corps Reserve, headquartered in Fort Devens, Massachusetts. Activated during World War II in 1943, 1/25th Marines participated in key Pacific campaigns, including the battles of Kwajalein, Saipan, Tinian, and Iwo Jima. After deactivation post-war, the battalion was reactivated and has since served in various capacities, including deployments to Iraq during Operation Iraqi Freedom. Today, 1/25th Marines continues its tradition of excellence, providing trained reserve Marines ready to support and augment active duty forces as needed.
MCB 7
U.S. Marine Corps
Naval Mobile Construction Battalion SEVEN (MCB 7), known as the "Magnificent Seven," was a unit of the United States Navy Seabees first commissioned during World War II in 1942. The battalion played a crucial role in constructing airfields, bases, and infrastructure across the Pacific Theater, supporting major campaigns such as Guadalcanal and Okinawa. Post-war, MCB 7 was decommissioned and later reactivated for service during the Korean War, the Cold War, and multiple deployments, including Vietnam and the Middle East. Throughout its history, MCB 7 was renowned for its versatility and dedication, supporting both combat operations and humanitarian missions until its final decommissioning in 2012.
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)