

USMC
379,107 members•1,273 units
Building the branch home surface
Loading branch highlights, featured unit context, and gallery moments.


379,107 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.
MACS 20 - Reserve
U.S. Marine Corps
Marine Air Control Squadron 20, Reserve (MACS-20) is a United States Marine Corps Reserve unit specializing in air command and control operations. Originally activated during the Cold War era, MACS-20 has provided critical support in aerial surveillance, air traffic control, and air defense for both training and operational missions. The squadron has participated in numerous joint and combined exercises, enhancing the readiness and effectiveness of Marine aviation forces. Throughout its history, MACS-20 has demonstrated adaptability and professionalism, supporting both national defense and humanitarian missions as part of the Marine Forces Reserve.

MAG 31
U.S. Marine Corps
Unit with 132 member associations.
MaintBn 1stFSR-FMF
U.S. Marine Corps
**MaintBn 1stFSR-FMF** (Maintenance Battalion, 1st Force Service Regiment, Fleet Marine Force) traces its origins to the expansion of Marine Corps logistics capabilities during the post-World War II era. Established to provide comprehensive maintenance support for ground equipment, the battalion became an integral part of the 1st Force Service Regiment within the Fleet Marine Force. Throughout the Korean and Vietnam Wars, MaintBn 1stFSR-FMF ensured operational readiness by repairing and sustaining vehicles, weapons, and essential gear for combat units. Over the decades, the battalion has continued to adapt, supporting Marine Corps operations worldwide by maintaining the equipment necessary for mission success.
MALS 31f
U.S. Marine Corps
**Marine Aviation Logistics Squadron 31 (MALS-31)** is a vital aviation logistics support unit within the United States Marine Corps, stationed at Marine Corps Air Station Beaufort, South Carolina. Established in 1943 as Headquarters Squadron 31, the unit has a distinguished history supporting Marine Aircraft Group 31 (MAG-31) with comprehensive aviation supply, maintenance, and ordnance support. Over the decades, MALS-31 has played a crucial role in numerous operations and deployments, both in peacetime and during conflicts, ensuring the combat readiness of Marine fighter squadrons. The squadron’s commitment to excellence and adaptability has cemented its reputation as a cornerstone of Marine Corps aviation logistics.
Mar Barracks treasure island SF cali
U.S. Marine Corps
Mar Barracks, located on Treasure Island in San Francisco, California, was a significant military installation established during the late 1930s as part of the island’s transformation for the Golden Gate International Exposition. During World War II, the facility became a strategic U.S. Navy barracks and training center, supporting personnel movement and logistics for operations in the Pacific Theater. The barracks housed thousands of sailors and served as a key transit and processing point throughout the war and into the early Cold War era. After decades of service, Mar Barracks and the broader Treasure Island Naval Station were decommissioned in the 1990s, with the site transitioning to civilian use.
Mar Det CVA 42
U.S. Marine Corps
**Marine Detachment, USS Franklin D. Roosevelt (CVA-42):** The Marine Detachment (MarDet) aboard USS Franklin D. Roosevelt (CVA-42) was established following the carrier’s commissioning in 1945. MarDet personnel provided shipboard security, manned secondary batteries, and conducted ceremonial duties throughout the ship’s deployments. Throughout the Cold War, including operations in the Mediterranean and the Atlantic, the MarDet played a crucial role in maintaining discipline and readiness aboard the vessel. The detachment remained active until the carrier’s decommissioning in 1977, upholding the proud tradition of Marines serving at sea.
Mar set fdr cva 42 retired col
U.S. Marine Corps
Certainly! Here is a brief military history based on your request: The unit **MarSet FDR CVA-42** served as part of the United States Navy, centered around the aircraft carrier USS *Franklin D. Roosevelt* (CVA-42). Commissioned in 1945, the *FDR* participated in numerous Cold War operations and NATO exercises, projecting American naval power across the Mediterranean and Atlantic. Over her decades of service, the ship was home to several embarked air wings and notable commanders, including retired Colonel [Name], who played a key role in operational readiness and inter-service cooperation. The carrier was decommissioned in 1977, marking the end of an era for both the *FDR* and the units that served aboard her.

MARFORRES
U.S. Marine Corps
Unit with 43 member associations.
Marine Advisory Unit Vietnam
U.S. Marine Corps
The Marine Advisory Unit, Vietnam, was established as part of the U.S. Marine Corps' efforts to support and train the South Vietnamese Marine Corps (VNMC) during the Vietnam War. Formally known as the U.S. Marine Advisory Unit, it operated under the Military Assistance Command, Vietnam (MACV) beginning in 1962. The unit's primary mission was to provide tactical and technical advice, assist in training, and coordinate operations between U.S. and Vietnamese Marine units. Marine advisors often accompanied Vietnamese Marines into combat, playing a crucial role in developing their operational capabilities until the withdrawal of U.S. forces in 1973.
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)