US Army
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Over 3,064,780 active members
1,365,023 members•89,925 units
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4th bn 10th inf
U.S. Army
4TH BN 4TH FA
U.S. Army
4TH BN 60TH ARTY
U.S. Army
4th bn 69th armor
U.S. Army
4TH BN 77TH FA
U.S. Army
4TH CHEM
U.S. Army
4TH CHEM (KOREA)
U.S. Army
4TH COAST ARTILLERY
U.S. Army
4th Combat Engineer Battalion
U.S. Army
The 4th Combat Engineer Battalion is a unit of the United States Marine Corps Reserve, originally activated in 1943 during World War II. The battalion participated in the Pacific campaign, providing critical engineering support during the battles of Guam and Iwo Jima. Reactivated and reorganized several times over the decades, the unit has supported operations in the Gulf War, Iraq, and Afghanistan, excelling in mobility, survivability, and countermobility tasks. Today, the 4th Combat Engineer Battalion continues to serve as an essential engineering force within the Marine Corps Reserve, supporting both combat and humanitarian missions worldwide.
4th ESC
U.S. Army
4TH ID BAND
U.S. Army
4th infantry division artillery
U.S. Army
4th Maintenance
U.S. Army
The 4th Maintenance Squadron (4th MXS) is a vital support unit within the United States Air Force, primarily assigned to the 4th Fighter Wing at Seymour Johnson Air Force Base, North Carolina. Established to provide comprehensive maintenance support, the squadron specializes in aircraft repair, component maintenance, and munitions handling for F-15E Strike Eagle operations. Throughout its history, the 4th MXS has played a crucial role in sustaining combat readiness during major conflicts and peacetime operations, including deployments in support of Operations Desert Storm, Enduring Freedom, and Iraqi Freedom. The unit’s commitment to excellence ensures the operational effectiveness and safety of the wing’s aircraft fleet, making it an indispensable part of Air Force mission success.
4TH MED
U.S. Army
4TH SUPPORT
U.S. Army
4TH SUPPORT BN
U.S. Army
4TH TRANSPORTATION
U.S. Army
4thBattalion:61stADA
U.S. Army
The 4th Battalion, 61st Air Defense Artillery (4-61 ADA) traces its lineage to the 61st Coast Artillery Regiment, originally constituted in 1917. Reactivated and reorganized several times throughout the 20th century, the battalion served in various air defense roles during World War II, providing critical anti-aircraft protection in the European Theater. During the Cold War, 4-61 ADA operated advanced missile systems, such as the Nike Hercules, to defend against potential aerial threats in Europe and the United States. The unit was eventually inactivated as part of broader realignments in U.S. Army air defense structure, but its legacy endures as part of the proud history of American air defense artillery.
5 th army
U.S. Army
5-14 INF 25TH ID LIGHT
U.S. Army
5-14 INF, 25TH INF DIV (L)
U.S. Army
5-158TH AVIATION REGIMENT
U.S. Army
5-17 FA
U.S. Army
5-20
U.S. Army