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1,349,366 members•7,146 units
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1,349,366 members•7,146 units
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4th Battalion 517th Artillery
U.S. Army
The 4th Battalion, 517th Artillery was a unit of the United States Army that served as a key artillery support element. Activated during the Cold War era, the battalion was equipped with field artillery designed to provide fire support for maneuver units. Throughout its service, the 4th Battalion participated in various training exercises and readiness operations, contributing to the overall deterrence posture of U.S. forces in Europe and elsewhere. Although the battalion was eventually deactivated as part of post-Cold War restructuring, its legacy of professionalism and readiness remains part of the history of U.S. Army artillery units.
4th Btn 30th Infantry
U.S. Army
The 4th Battalion, 30th Infantry Regiment has a distinguished history within the United States Army, tracing its lineage back to the formation of the 30th Infantry Regiment in 1916. The regiment saw significant action during World War I, participating in major campaigns such as the Meuse-Argonne Offensive. In World War II, its battalions, including the 4th, fought valiantly in the European Theater, notably during the Normandy landings and subsequent operations in France and Germany. Throughout its service, the 4th Battalion has maintained a reputation for courage and professionalism, contributing to American military operations in multiple conflicts.
4th CMMI Team 3
U.S. Army
The 4th CMMI Team 3 was a specialized unit focused on Command Maintenance Management Inspection (CMMI) within the U.S. Army. Established to enhance equipment readiness and maintenance standards, the team conducted detailed evaluations of unit maintenance operations, procedures, and compliance with Army regulations. Throughout its operational period, 4th CMMI Team 3 provided crucial feedback and training to improve logistical and maintenance performance across multiple commands. Their efforts contributed significantly to increased operational efficiency and readiness within supported units.
4TH PSYCHOLOGICAL OPERATIONS GROUP
U.S. Army
Imported from legacy system. Member count: 11
4th Quartermaster Detachment
U.S. Army
The 4th Quartermaster Detachment is a United States Army Reserve unit specializing in water purification and supply operations. Activated in Greensburg, Pennsylvania, the unit is most remembered for its service during Operation Desert Storm in 1991. On February 25, 1991, the unit suffered a devastating loss when an Iraqi Scud missile struck their barracks in Dhahran, Saudi Arabia, resulting in 13 soldiers killed and 43 wounded—the single greatest loss of life for a U.S. unit during the Gulf War. Since then, the 4th Quartermaster Detachment has continued to serve with distinction, supporting military operations and humanitarian missions both at home and abroad.
4th Recruit Training Battalion, Oscar Company, Platoon 4023
U.S. Army
The 4th Recruit Training Battalion is a unit within the United States Marine Corps Recruit Depot Parris Island, responsible for training and transforming female recruits into United States Marines. Oscar Company, as part of the battalion, upholds the proud traditions and rigorous standards of Marine Corps boot camp. Platoon 4023, activated for specific recruit training cycles, has contributed to the battalion’s mission by graduating new Marines ready for service. Throughout its history, the 4th Recruit Training Battalion has played a vital role in integrating women into the Marine Corps and maintaining the Corps’ legacy of excellence and discipline.
4th terminal service LONG BEIN Vietnam
U.S. Army
The 4th Terminal Service Company was a U.S. Army logistics unit stationed at Long Binh, Vietnam, during the Vietnam War. Activated to provide critical port and cargo handling operations, the company supported the massive logistical flow through the Long Binh Post, the largest U.S. Army base in Vietnam. Its personnel managed the receipt, storage, and distribution of essential supplies, equipment, and ammunition, ensuring frontline troops remained well-equipped. The 4th Terminal Service Company played a vital role in sustaining military operations throughout the conflict until the drawdown of American forces.

5-5 ADA
U.S. Army
Unit with 140 member associations.
5:78th
U.S. Army
The 5th Battalion, 78th Field Artillery Regiment (5/78th FA) has a distinguished history within the United States Army. Originally constituted during World War I, the unit has undergone various activations and redesignations, serving in key artillery roles in both European and domestic assignments. During the Cold War, the 5/78th was stationed in Germany, providing critical fire support as part of NATO forces. In more recent decades, the battalion has been involved in training operations at Fort Sill, Oklahoma, upholding its legacy of excellence in artillery proficiency and soldier readiness.
U.S. Army Veteran (2026 - 2026)
U.S. Army Veteran (2026 - 2026)
U.S. Army Other (2026 - 2026)
U.S. Army Spouse (2026 - Present)