25th ADC,Sage

The 25th Air Defense Command (25th ADC), also known as the 25th Air Division (SAGE), was an integral part of the United States Air Force's air defense network during the Cold War. Activated in 1948, the unit was responsible for the air defense of the Pacific Northwest and later incorporated into the Semi-Automatic Ground Environment (SAGE) system in the late 1950s, which provided real-time data processing and command control for intercepting potential enemy aircraft. The division coordinated radar, interceptor, and missile units to protect U.S. airspace against Soviet bomber threats. The 25th ADC remained active until its inactivation in 1990, marking over four decades of service in continental air defense.