US Army
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1,349,224 members•7,146 units
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401st Intelligence Corps Detachment
U.S. Army
The 401st Intelligence Corps Detachment is a specialized military unit focused on intelligence collection and analysis to support operational commands. Established during the Cold War era, the unit played a critical role in counterintelligence and security operations, particularly in overseas deployments. Over the years, the 401st has adapted to evolving threats, including cyber and asymmetric warfare, enhancing its capabilities in signals and human intelligence. Today, it continues to provide vital intelligence support to joint and combined military operations worldwide.
401ST MP CO
U.S. Army
Unit with 114 member associations.
402nd Personnel Service Co.
U.S. Army
The 402nd Personnel Service Company (PSC) is a U.S. Army Reserve unit specializing in human resources and administrative support for military personnel. Activated in the late 20th century, the 402nd PSC has provided essential personnel services, including records management, casualty reporting, and postal operations, to soldiers across various theaters of operation. The unit has supported major deployments during operations such as Operation Iraqi Freedom and Operation Enduring Freedom, ensuring that service members received critical administrative support in both combat and peacetime environments. Throughout its history, the 402nd PSC has demonstrated adaptability and professionalism, contributing significantly to the Army's mission readiness and personnel well-being.
40th Arty Brigade San Francisco Ca
U.S. Army
The 40th Artillery Brigade, based in San Francisco, California, traces its origins to early 20th-century coastal defense units tasked with protecting the strategic San Francisco Bay area. During World War II, the brigade played a vital role in harbor defense, manning coastal artillery batteries and anti-aircraft positions against potential threats from the Pacific. Following the war, the unit underwent several reorganizations, adapting to new technologies and missions during the Cold War, including missile defense. Today, the 40th Artillery Brigade’s legacy continues through its contributions to regional and national defense, honoring its long-standing tradition of service from the Golden Gate.
40th Infantry
U.S. Army
The 40th Infantry Regiment was constituted on 15 May 1917 in the Regular Army of the United States during the build-up for World War I. Organized at Fort Snelling, Minnesota, the unit did not see combat during the Great War but served as a training and replacement regiment. After the war, the 40th Infantry was stationed at various posts before being inactivated in 1921 at Fort Snelling. Though reactivated briefly during World War II, it was ultimately disbanded in 1944 as the Army reorganized its forces for the changing needs of the conflict.
40th Transportation Unit
U.S. Army
The 40th Transportation Unit was activated during World War II to support the increasing logistical demands of the United States Army in the European Theater. The unit played a crucial role in transporting troops, equipment, and supplies across France and Germany following the D-Day invasion. After the war, the 40th underwent several reactivations and inactivations, serving in both the Korean and Vietnam Wars, where it facilitated the rapid movement of materials and personnel in challenging environments. Today, the 40th Transportation Unit is recognized for its adaptability and dedication to ensuring operational readiness through superior logistical support.
41 BSTB
U.S. Army
The 41st Brigade Special Troops Battalion (41 BSTB) was a unit within the 41st Infantry Brigade Combat Team of the Oregon Army National Guard. Activated in 2005 as a result of Army modular transformation, the BSTB provided specialized support, encompassing military intelligence, signal, engineer, and military police capabilities to the brigade. The 41 BSTB supported both state and federal missions, including overseas deployments, most notably to Iraq during Operation Iraqi Freedom in 2009–2010. In 2016, the unit was reorganized and redesignated as the 741st Brigade Engineer Battalion, reflecting evolving mission requirements.
411th ATC 1st Cav
U.S. Army
The 411th Air Traffic Control (ATC) was a specialized unit assigned to the 1st Cavalry Division, playing a crucial role in managing airspace and coordinating helicopter and fixed-wing aircraft operations during combat missions. Activated during the Vietnam War, the 411th ATC established and operated tactical airfields, ensuring safe and efficient air traffic flow in rapidly changing combat environments. The unit’s expertise in airspace management directly supported the 1st Cav’s pioneering use of airmobile tactics, increasing operational flexibility and battlefield mobility. Through its dedicated service, the 411th ATC contributed significantly to the success of numerous division operations and set standards for Army ATC units in future conflicts.
411TH MP CO
U.S. Army
Unit with 118 member associations.
U.S. Army Veteran (2026 - 2026)
U.S. Army Veteran (2026 - 2026)
U.S. Army Other (2026 - 2026)
U.S. Army Spouse (2026 - Present)