Det 4 9th Air Postal Sq Osan AB

Detachment 4, 9th Air Postal Squadron, stationed at Osan Air Base, South Korea, played a vital role in supporting United States Air Force operations on the Korean Peninsula. Established during the Cold War, the detachment was responsible for managing and ensuring the secure and timely movement of official and personal mail for U.S. military personnel and units in the region. Its mission contributed significantly to troop morale and operational efficiency, especially during periods of heightened tension. Over the years, Det 4 adapted to evolving logistics demands and technological advancements, maintaining its critical support function until its eventual inactivation as postal operations were consolidated across the Pacific theater.