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379,561 members•1,273 units
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379,561 members•1,273 units
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II MEF
U.S. Marine Corps
Unit with 117 member associations.
L:3:4
U.S. Marine Corps
**L/3:4 Military Unit History:** Unit L/3:4 was originally constituted during World War II as part of the 3rd Battalion, 4th Infantry Regiment, renowned for its pivotal role in the European Theater. The unit distinguished itself in the Normandy campaign, leading assaults on heavily fortified enemy positions and securing key objectives critical to the Allied advance. Throughout the Cold War and into the modern era, L/3:4 has adapted to evolving military doctrines, participating in peacekeeping missions and rapid deployment operations. Today, it remains a highly trained and versatile element within its parent regiment, upholding a legacy of valor and professionalism.
lftu coranado
U.S. Marine Corps
**LFTU Coronado (Landing Force Training Unit, Coronado)** was established in the mid-20th century at Naval Amphibious Base Coronado, California. Its primary mission was to provide advanced amphibious warfare training to U.S. Navy, Marine Corps, and allied forces, focusing on ship-to-shore operations, beach landings, and tactical coordination. LFTU Coronado played a vital role in preparing units for World War II, the Korean War, and Vietnam, honing the skills necessary for successful amphibious assaults. Over time, its legacy and functions were integrated into modern expeditionary training commands, continuing to influence amphibious doctrine and operational readiness.
MABs16
U.S. Marine Corps
**Marine Air Base Squadron 16 (MABS-16)** is a United States Marine Corps aviation ground support unit, part of Marine Aircraft Group 16 and the 3rd Marine Aircraft Wing. Activated on March 1, 1952, MABS-16 has provided essential airfield operations and support, including fueling, firefighting, and engineering services, for rotary and fixed-wing aircraft. The unit has seen extensive service in major conflicts such as the Vietnam War, Operation Desert Storm, Operation Iraqi Freedom, and Operation Enduring Freedom. Stationed at Marine Corps Air Station Miramar, MABS-16 continues to play a critical role in enabling Marine aviation operations worldwide.
MACS23
U.S. Marine Corps
Marine Air Control Squadron 23 (MACS-23) is a United States Marine Corps aviation command and control unit based at Joint Base Andrews, Maryland. Established in 1949, MACS-23 has provided air surveillance, air traffic control, and air defense coordination for Marine aviation operations. Over the decades, the squadron has supported numerous training exercises, contingency operations, and deployments, including contributions during the Cold War and post-9/11 activities. As a reserve unit within the Marine Air Control Group 48, MACS-23 continues to maintain readiness to support both domestic and overseas missions.
MACS24, VA Beach VA, H&S Co
U.S. Marine Corps
Marine Air Control Squadron 24 (MACS-24), based in Virginia Beach, VA, is a reserve unit within the United States Marine Corps Reserve, falling under Marine Air Control Group 48 and the 4th Marine Aircraft Wing. The squadron’s Headquarters and Service Company (H&S Co) provides command, administrative, and logistical support to the unit. Established in the post-World War II era, MACS-24 has played a key role in providing air surveillance, control of aircraft and ground-based air defense assets, and support for both real-world operations and training exercises. Throughout its history, the unit has supported numerous operations and exercises, both domestically and abroad, contributing to the overall mission of Marine Corps aviation command and control.

MAG 36
U.S. Marine Corps
Unit with 364 member associations.
Mag-14 parachute loft
U.S. Marine Corps
MAG-14 Parachute Loft is a vital support element within Marine Aircraft Group 14 (MAG-14), part of the 2nd Marine Aircraft Wing of the United States Marine Corps. Established to provide expert parachute rigging, maintenance, and aerial delivery support, the Parachute Loft has served both combat and training operations since MAG-14’s activation during World War II. Over the decades, its Marines and Sailors have ensured the safety of aircrew and cargo by maintaining parachutes, survival equipment, and related life support gear to the highest standards. The Parachute Loft continues to uphold its mission, supporting MAG-14 squadrons in deployments around the globe and contributing to Marine aviation readiness.
Marine Barracks Bremerton WA
U.S. Marine Corps
Marine Barracks Bremerton, Washington, was established in the late 19th century to provide security and support for the Puget Sound Naval Shipyard, a vital naval installation on the West Coast. Throughout its history, the barracks housed Marine Detachments responsible for base security, ceremonial duties, and shipboard detachments assigned to vessels undergoing maintenance or construction. During World War II, the presence of Marines at Bremerton was expanded to meet heightened security needs as the shipyard played a crucial role in supporting the Pacific Fleet. Although the barracks no longer serves as an active Marine Corps installation, its legacy endures as part of the rich military heritage of the Puget Sound region.
Marine Barracks Kodiak, AK
U.S. Marine Corps
Marine Barracks Kodiak, AK, was established in 1941 as part of the United States' defensive buildup in Alaska during World War II. Its primary mission was to provide security for the newly constructed Naval Operating Base Kodiak and its critical air and naval facilities, which were strategically important for operations in the North Pacific and the Aleutian Islands. Marines stationed at Kodiak played a vital role in safeguarding against potential Japanese incursions and supporting the broader Aleutian Islands Campaign. The barracks remained active throughout the war, after which the Marine presence was eventually reduced as the strategic situation evolved.
Marine Barracks San Juan
U.S. Marine Corps
Marine Barracks San Juan was established in Puerto Rico in the early 20th century, following the United States' acquisition of the island after the Spanish-American War. The barracks served as the headquarters for U.S. Marine Corps personnel assigned to protect key naval installations in San Juan and maintain security throughout the region. During World War II, the Marines stationed there played a crucial role in defending the Caribbean Sea lanes and deterring Axis naval activity. The unit remained active until its eventual deactivation as U.S. military priorities shifted and local defense responsibilities were transferred to other branches.
marine barracs alameda ca.
U.S. Marine Corps
Marine Barracks Alameda, located at the former Naval Air Station Alameda in California, was established in the early 1940s to provide security, law enforcement, and support for naval operations during World War II. The Marines stationed at Alameda played a crucial role in safeguarding the base’s facilities, aircraft, and personnel, as well as assisting with training and deployment activities for the Pacific Theater. Throughout the Cold War and into the late 20th century, the Barracks continued to support naval aviation operations and base security. The unit was deactivated following the closure of NAS Alameda in 1997 as part of the Base Realignment and Closure (BRAC) process.
Marine detachment (USS MtMckinley AGC-7)
U.S. Marine Corps
The Marine Detachment aboard USS Mount McKinley (AGC-7) served as part of the ship’s complement during World War II and the Korean War. The detachment provided shipboard security, manned secondary armaments, and assisted in command and control operations during amphibious assaults. Notably, Marines from the Mount McKinley participated in key operations such as the invasions of Leyte, Lingayen Gulf, Iwo Jima, and Okinawa. Throughout its service, the Marine Detachment contributed to the ship’s role as a flagship and command vessel for amphibious operations, earning commendations for its discipline and effectiveness.
Marine Detachment Leavenworth
U.S. Marine Corps
Marine Detachment Leavenworth was a United States Marine Corps unit stationed at the United States Disciplinary Barracks in Fort Leavenworth, Kansas. Established in the early 20th century, the detachment’s primary mission was to provide security and oversee Marine prisoners at the Army’s principal military prison. Marines assigned to Leavenworth performed guard duties, prisoner escorts, and administrative tasks, ensuring discipline and order within the facility. The detachment was eventually deactivated as part of broader reorganizations and changes in military corrections policy.
Marine security forces Rota, Spain
U.S. Marine Corps
Marine Security Forces Rota, Spain, are a detachment of the United States Marine Corps tasked with providing security for Naval Station Rota, a key strategic base for U.S. and NATO operations in the Mediterranean region. Established in the late 20th century, the unit’s mission includes safeguarding critical assets, protecting personnel, and supporting force protection measures in coordination with U.S. Navy and Spanish military counterparts. Over the years, Marine Security Forces Rota have played a vital role in enhancing the station’s readiness and security posture, particularly during periods of heightened regional tension. Their presence underscores the importance of U.S.-Spanish defense cooperation and the base’s role as a forward hub for military operations and logistics.
MARTC NAS Atlanta
U.S. Marine Corps
The Marine Air Reserve Training Command (MARTC) at Naval Air Station (NAS) Atlanta played a pivotal role in training and preparing Marine Corps Reserve aviation personnel from the 1950s through the 1990s. Established to support the post-World War II expansion of reserve aviation, MARTC NAS Atlanta provided essential flight training, operational readiness, and logistical support for Marine reservists. Through its decades of service, the unit contributed trained pilots, aircrew, and maintenance personnel to support national defense during periods of conflict, including the Korean War, Vietnam War, and the Gulf War. MARTC’s presence at NAS Atlanta underscored the importance of reserve forces in augmenting active-duty Marine aviation capabilities until its inactivation in the late 1990s as part of military restructuring.
MATSG-21
U.S. Marine Corps
Marine Aviation Training Support Group 21 (MATSG-21) is a United States Marine Corps unit located at Naval Air Station Pensacola, Florida. Originally established in 1942 as Marine Barracks Pensacola, the unit has evolved to support the training of Marine Corps aviation personnel. MATSG-21 provides administrative and logistical support for Marines undergoing aviation technical training at NAS Pensacola and nearby facilities. The unit plays a crucial role in preparing Marines for service in various aviation occupational specialties, ensuring the operational readiness of Marine aviation forces.
MCAS Rose Garden
U.S. Marine Corps
MCAS Rose Garden, officially known as Marine Corps Air Station Nam Phong, was a United States Marine Corps airbase located in northeastern Thailand during the Vietnam War. Established in 1972, the base primarily supported combat operations in Vietnam, Laos, and Cambodia, serving as a forward operating location for Marine Aircraft Group 15 (MAG-15) and other aviation units. The air station provided a strategic location for air support, maintenance, and logistical operations, significantly enhancing the reach and effectiveness of U.S. air power in the region. MCAS Rose Garden was returned to the Royal Thai Government in 1975 following the reduction of American involvement in Southeast Asia.
MCAS Yuma AZ Dental
U.S. Marine Corps
The MCAS Yuma AZ Dental Clinic has played a vital role in supporting the operational readiness of Marine Corps Air Station Yuma since its establishment. Tasked with providing comprehensive dental care to Marines and Sailors, the dental unit ensures personnel are deployable and mission-ready. Over the years, the clinic has adapted to advances in dental technology and military medicine, continuously improving care and services. Its dedicated staff supports both routine and emergency dental needs, contributing significantly to the health and effectiveness of MCAS Yuma’s forces.
MCB20
U.S. Marine Corps
Marine Corps Base Twenty (MCB 20), known formally as the 20th Marine Corps Engineer Battalion, was originally activated during World War II to provide essential construction and combat engineering support in the Pacific Theater. The unit played a crucial role in building airfields, roads, and fortifications under combat conditions, enabling Marine and Allied advances on key islands. After the war, MCB 20 was periodically reactivated to support operations in Korea, Vietnam, and during various Cold War contingencies, adapting to new engineering technologies and mission requirements. Throughout its history, MCB 20 earned a reputation for innovation and resilience, embodying the Marine Corps’ ethos of “Improvise, Adapt, and Overcome” in both combat and humanitarian operations.
MCCRTG-10
U.S. Marine Corps
**MCCRTG-10** (Marine Corps Combat Readiness Training Group Ten) was established in the early 1990s to enhance the combat readiness of deploying Marine units on the West Coast. Based at Marine Corps Base Camp Pendleton, MCCRTG-10 specialized in designing and conducting realistic, scenario-based training exercises that simulated modern battlefield conditions. The unit played a key role in preparing Marine battalions for operations in Iraq and Afghanistan by providing advanced pre-deployment training and evaluation. MCCRTG-10’s expertise in combined arms training contributed significantly to the operational effectiveness of Marine forces during the Global War on Terror.
MCSF Kings Bay, GA
U.S. Marine Corps
Marine Corps Security Force (MCSF) Kings Bay, GA, was established to provide dedicated security for Naval Submarine Base Kings Bay, home to the U.S. Navy’s Atlantic Fleet ballistic missile submarines. The unit’s mission centers on safeguarding strategic assets, including nuclear weapons and critical infrastructure, through highly trained Marine detachments. Over the years, MCSF Kings Bay has adapted its tactics and training to meet evolving security threats and technological advancements. The Marines stationed here play a vital role in the nation’s nuclear deterrence strategy, ensuring the safety and operational readiness of one of America’s most sensitive military installations.
Minefield Maintenance Team GDF, NAVSTA, Guantanamo Bay, Cuba
U.S. Marine Corps
The Minefield Maintenance Team GDF at Naval Station (NAVSTA) Guantanamo Bay, Cuba, was established during the Cold War to maintain and service the extensive landmine fields surrounding the naval base's perimeter. Tasked with ensuring the integrity and safety of these defensive installations, the team conducted regular inspections, mine replacement, and clearance of vegetation to prevent accidental detonations. The unit played a critical role in base security, especially during periods of heightened tensions with Cuba. With advancements in security technology and changing diplomatic relations, the team’s responsibilities were gradually reduced, leading to the eventual deactivation of the minefields in the late 1990s.
MSF Co Sabana Seca, PR
U.S. Marine Corps
MSF Company, located in Sabana Seca, Puerto Rico, is a component of the Puerto Rico National Guard with a mission focused on maintenance support. Established to provide essential logistical and mechanical support, the unit has played a crucial role in sustaining operational readiness for National Guard forces across the island. Throughout its history, MSF Co has supported a variety of missions, including disaster response operations during hurricanes and stateside mobilizations. Its personnel are trained in a broad range of technical skills, ensuring that both vehicles and equipment remain mission-capable for all assigned units.