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3rd Battalion, 109th Infantry. Headquarters Company
U.S. Army
The 3rd Battalion, 109th Infantry, Headquarters Company, traces its lineage to the storied 109th Infantry Regiment of the Pennsylvania Army National Guard, with roots extending back to the Civil War era. Throughout its history, the battalion saw distinguished service in major conflicts, including World War I with the 28th Infantry Division in France, and World War II, participating in campaigns across Europe. During the Cold War and into the modern era, the battalion continued to serve as a vital component of the National Guard, providing trained soldiers for both federal and state missions. Headquarters Company has served as the command and control hub, ensuring operational readiness and effective leadership for the battalion’s missions at home and abroad.
3rd BCT Brigade, 5th Army
U.S. Army
The 3rd Brigade Combat Team (BCT), part of the 5th Army, has served as a key maneuver element within the U.S. Army’s organizational structure. Activated during World War II, the brigade participated in major campaigns in the European Theater, providing infantry and armored support in pivotal battles. Throughout the Cold War and into the 21st century, the 3rd BCT adapted to changing doctrines, deploying in various contingency operations and training exercises worldwide. Today, the brigade continues its legacy of readiness and operational excellence as part of the Army’s rapid deployment force.
3rd MASH
U.S. Army
The 3rd Mobile Army Surgical Hospital (3rd MASH) was a vital U.S. Army medical unit, first activated during World War II to provide rapid, frontline surgical care for wounded soldiers. Reactivated for the Korean War, the 3rd MASH operated close to the front lines, saving countless lives through advanced trauma surgery techniques in harsh field conditions. The unit was renowned for its mobility and adaptability, frequently relocating in response to shifting battle lines. After its distinguished service, the 3rd MASH was eventually inactivated, its legacy continuing in modern military medical units such as Combat Support Hospitals (CSHs).
3rd Missle 21st Artty. Germany
U.S. Army
The 3rd Missile Battalion, 21st Artillery (3rd Missile, 21st Arty), was a U.S. Army unit stationed in Germany during the Cold War. Activated in the late 1950s, the battalion was equipped with tactical nuclear-capable missile systems, including the Honest John and later the Sergeant missile. Its mission was to provide theater-level fire support and deterrence as part of NATO’s forward-deployed forces. The battalion played a critical role in reinforcing the U.S. commitment to European defense until its deactivation in the early 1970s as missile technology and force structures evolved.
3rd msl bn btry d
U.S. Army
**3rd Missile Battalion, Battery D** (often rendered as 3rd MSL BN, BTRY D) was a unit designation used by the United States Army Air Defense Artillery during the Cold War era. Originally formed as part of the Army’s efforts to field Nike missile systems, Battery D served as a subordinate element within the 3rd Missile Battalion, which was tasked with the defense of key strategic locations against potential Soviet bomber attacks. The battery operated Nike Ajax and later Nike Hercules surface-to-air missiles, maintaining a high state of readiness during periods of heightened tension. The unit was eventually inactivated as technological advances and strategic changes led to the decommissioning of the Nike missile program in the late 1960s and early 1970s.
3RD RANGER BATTALION
U.S. Army
Unit with 42 member associations.
3rd Trans Center, Saigon Support Command
U.S. Army
The 3rd Transportation Center (3rd Trans Center) was a key logistics unit within the Saigon Support Command during the Vietnam War. Established to coordinate and manage transportation operations in and around Saigon, the unit played a critical role in moving personnel, equipment, and supplies throughout the III Corps Tactical Zone. The 3rd Trans Center operated a variety of vehicle fleets and maintained vital convoy routes, ensuring the steady flow of resources necessary for U.S. and allied operations. Its efforts were essential to sustaining combat and support activities during the height of American involvement in Vietnam.
3rd:58th aviation
U.S. Army
The 3rd Battalion, 58th Aviation Regiment (3-58th Aviation) has a distinguished history within the U.S. Army, specializing in airfield operations and air traffic services. Activated in the late 1980s, the unit has played a vital role in providing aviation support, air traffic control, and airspace management for both peacetime and combat missions. Over its operational years, 3-58th Aviation has supported deployments in major conflicts, including Operations Desert Storm, Enduring Freedom, and Iraqi Freedom. The unit is recognized for its technical expertise, adaptability, and commitment to ensuring safe and effective military aviation operations worldwide.
3rd. Sqd . 12th Armored. Calvalry r
U.S. Army
The 3rd Squadron, 12th Armored Cavalry Regiment has a distinguished history of service within the United States Army. Originally constituted during World War II, the unit was activated to provide reconnaissance and armored support during key campaigns in the European Theater. In the postwar era and throughout the Cold War, the 3rd Squadron played a vital role in patrolling the borders of West Germany, acting as a deterrent against potential aggression. In recent decades, the squadron has deployed in support of operations in the Middle East, demonstrating adaptability and professionalism in both combat and peacekeeping missions.
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