US Army Field Station Okinawa

The US Army Field Station Okinawa was established in the early 1960s as part of the United States’ global signals intelligence (SIGINT) network during the Cold War. Located on the island of Okinawa, Japan, the unit operated under the Army Security Agency and later the Intelligence and Security Command (INSCOM). Its mission focused on intercepting and analyzing communications from the Asia-Pacific region, particularly monitoring Soviet, Chinese, and North Korean military activities. The station played a vital role in supporting US and allied operations throughout the Cold War before being reorganized as the 301st Military Intelligence Battalion in the late 1970s.