9th USASA

The 9th United States Army Security Agency (USASA) was activated in the 1950s during the early years of the Cold War. Its primary mission was signals intelligence (SIGINT) and electronic warfare, focusing on intercepting and analyzing enemy communications in the Pacific and Asian theaters. The unit played a significant role during the Vietnam War, providing critical intelligence support to U.S. and allied forces. The 9th USASA contributed to operations by enhancing situational awareness and supporting tactical decisions until its eventual inactivation and reorganization in the mid-1970s as part of broader Army intelligence restructuring.