Kamiseya Japan

Kamiseya, Japan, was the site of a significant U.S. Navy communications facility established during the post-World War II era. Originally commissioned in 1945, Naval Security Group Activity (NSGA) Kamiseya played a crucial role in signals intelligence collection and cryptologic operations throughout the Cold War. The base was instrumental during the Korean and Vietnam Wars, providing vital intelligence support to U.S. and allied forces in the Pacific region. After decades of service, the facility was closed in the late 1990s, with its missions transferred to other locations.