Marine Air Control Squadron 3 (MACS-3) was a United States Marine Corps aviation command and control unit originally activated during World War II. Established in 1944, MACS-3 provided air surveillance, early warning, and tactical air control for Marine aviation forces. The squadron played key roles during the Korean War and the Vietnam War, supporting air defense and controlling aircraft in combat operations. MACS-3 was eventually deactivated as part of post-Cold War force reductions, but its legacy lives on through its contributions to Marine Corps aviation command and control capabilities.
