USAF
488,536 members•3,725 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
488,536 members•3,725 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.
513th Avionics Maintenance Squadron
U.S. Air Force
The 513th Avionics Maintenance Squadron was an integral unit of the United States Air Force, responsible for maintaining and repairing avionics systems that ensured operational readiness of various aircraft. Activated during the Cold War era, the squadron primarily supported electronic systems on strategic bombers and reconnaissance aircraft stationed at their assigned base. Throughout its service, the 513th played a crucial role in sustaining the technological edge of U.S. air operations, particularly in support of Strategic Air Command missions. The squadron was eventually inactivated as part of Air Force restructuring and modernization efforts in the post-Cold War period.
51st CSG
U.S. Air Force
The 51st Combat Sustainment Group (CSG) traces its origins to various support and logistics units that have served under the 51st Fighter Wing at Osan Air Base, South Korea. Established to provide comprehensive logistics, supply, transportation, and maintenance support, the 51st CSG has played a vital role in ensuring the operational readiness of U.S. Air Force assets on the Korean Peninsula. Throughout its history, the unit has supported numerous exercises and real-world contingencies, enhancing the wing's ability to project power and maintain stability in the region. The 51st CSG continues to uphold its mission by delivering agile, responsive sustainment services to joint and allied forces in one of the most strategically significant areas in the world.
527th Tactical fighter Squadron
U.S. Air Force
The 527th Tactical Fighter Squadron was originally activated during World War II as the 312th Bombardment Squadron in 1942 and later redesignated as the 527th Fighter-Bomber Squadron. It saw significant combat in the European Theater, supporting Allied ground forces and participating in key campaigns such as the Normandy invasion. After the war, the squadron underwent several inactivations and reactivations, eventually becoming the 527th Tactical Fighter Squadron during the Cold War. Stationed in Europe, it played a pivotal role in NATO air defense, flying aircraft such as the F-100 Super Sabre and later the F-4 Phantom II before its inactivation in 1990.
532sac
U.S. Air Force
**532nd Strategic Aerospace Command (532 SAC) Military History:** The 532nd Strategic Aerospace Command (532 SAC) was established during the height of the Cold War to provide strategic deterrence and global strike capabilities for the United States. Originally activated as a bombardment unit in the early 1950s, the 532 SAC was later re-designated and equipped with intercontinental ballistic missiles (ICBMs) and long-range strategic bombers. Throughout its operational history, the unit participated in numerous alert rotations, nuclear readiness exercises, and played a crucial role in maintaining the nation's second-strike capability. The 532 SAC was eventually inactivated in the early 1990s following the end of the Cold War and the subsequent restructuring of U.S. strategic forces.
539th Fighter Interceptor Squadron
U.S. Air Force
The 539th Fighter Interceptor Squadron was an active unit of the United States Air Force, originally constituted during World War II. Activated in 1943, it first served as a training and replacement unit for fighter pilots before being inactivated in 1944. The squadron was later reactivated during the Cold War in 1954, stationed at McGuire Air Force Base, New Jersey, and tasked with continental air defense missions, flying aircraft such as the F-86 Sabre and later the F-106 Delta Dart. The 539th played a crucial role in North American airspace defense until its final inactivation in 1967.
540th Engineer Group
U.S. Air Force
The 540th Engineer Group was constituted in the United States Army during World War II and activated on 1 February 1943. The unit served with distinction in the European Theater, playing a crucial role in constructing bridges, clearing obstacles, and supporting combat operations during major campaigns such as the Normandy invasion and the advance across France and Germany. After World War II, the 540th Engineer Group was inactivated, but it was later reactivated and continued to serve in various capacities, including during the Cold War and in support of peacetime engineering missions. Throughout its history, the 540th Engineer Group earned multiple campaign streamers and commendations for its exemplary service and versatility in combat and construction engineering tasks.
54th Mortuary Affairs Company
U.S. Air Force
The 54th Mortuary Affairs Company is a specialized unit of the United States Army tasked with the dignified handling, processing, and evacuation of deceased personnel on the battlefield. Activated in 1996, the company has supported multiple military operations, including missions in Iraq and Afghanistan, where it played a critical role in recovering and identifying fallen service members. The unit is based at Fort Liberty (formerly Fort Bragg), North Carolina, under the 530th Combat Sustainment Support Battalion, 82nd Sustainment Brigade. Through its dedicated service, the 54th Mortuary Affairs Company upholds the Army’s commitment to ensuring no soldier is left behind, providing crucial support to families and the broader military community.
551st Strategic Missle Squadron
U.S. Air Force
The 551st Strategic Missile Squadron was a United States Air Force unit activated during the height of the Cold War. Initially established in 1942 as a bombardment squadron, it was later redesignated as a missile squadron and assigned to the 310th Strategic Aerospace Wing at Schilling Air Force Base, Kansas. From 1963 to 1965, the squadron operated the SM-65 Atlas intercontinental ballistic missile, serving as a critical component of the nation’s nuclear deterrent. The unit was inactivated in 1965 following the phase-out of the Atlas missile system.
551th EMS
U.S. Air Force
The 551st Expeditionary Maintenance Squadron (551th EMS) is a United States Air Force unit tasked with providing comprehensive maintenance support to deployed aircraft and associated equipment. Activated as part of expeditionary operations, the squadron plays a critical role in ensuring aircraft readiness, conducting inspections, repairs, and servicing in austere environments. Throughout its history, the 551st EMS has supported various operations and contingencies, contributing to mission success through rapid response and technical expertise. Its dedicated airmen uphold a tradition of excellence, maintaining peak operational capability in support of U.S. and allied airpower.
U.S. Air Force Active Duty (2026 - Present)
U.S. Air Force Military Retiree (2026 - 2026)
U.S. Air Force Veteran (2025 - Present)
U.S. Air Force Active Duty (2025 - Present)