October 24, 1967

US airplanes attack North Vietnam’s largest air base, Phuc Yen, for the first time in a combined Air Force, Navy, and Marine strike. During the attack, the Air Force downs its 69th MiG. The destruction of this MiG-21 marked the first time a weapons controller aboard an airborne radar aircraft (in this case, a Lockheed EC-121D) had ever directed a successful interception.