About this Unit
The 635th Combat Support Group was an active United States Air Force unit, primarily stationed at U-Tapao Royal Thai Navy Airfield, Thailand, during the Vietnam War. Activated in 1966, the group provided essential base support, security, and logistical services to enable the operations of Strategic Air Command bomber and tanker missions in Southeast Asia. The 635th played a vital role in sustaining air operations, handling everything from civil engineering and supply to communications and medical care for deployed personnel. The group was inactivated in 1976 as the US military presence in Thailand was reduced following the end of American involvement in Vietnam.
Historical Facts
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Origins: The 635th Combat Support Group was first activated during the Vietnam War era to provide vital base support for United States Air Force operations in Southeast Asia.
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Location: The group was assigned to U-Tapao Royal Thai Navy Airfield in Thailand, a strategic base for B-52 and KC-135 operations.
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Support Role: The 635th was responsible for all base operations, including security, civil engineering, logistics, medical services, and administration for personnel stationed at U-Tapao.
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Vietnam War Contributions: The group supported the large-scale bombing campaigns, including Operation Linebacker II, by ensuring the aircrews and aircraft had the necessary support and infrastructure.
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Critical Infrastructure: The 635th managed and maintained the runways, fuel storage facilities, munitions storage, and living quarters for thousands of U.S. and allied personnel.
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Humanitarian Missions: In addition to combat operations, the group also assisted with humanitarian relief efforts in Southeast Asia, providing aid and logistics after natural disasters.
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Secrecy and Security: Due to the sensitive nature of B-52 bombing missions, the 635th maintained high levels of operational security and frequently coordinated with Thai authorities.
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Inactivation: The 635th Combat Support Group was inactivated in the mid-1970s as U.S. operations in Vietnam wound down and American forces withdrew from Thailand.
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Legacy: Many veterans who served with the 635th have maintained connections through reunions and veterans’ organizations, preserving the group’s unique legacy.
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Decorations: The group and its subordinate units received multiple commendations for their service, including Air Force Outstanding Unit Awards for their exceptional support during critical combat operations.
