Forty-six U.S. F-105 fighter-bombers attack the missile installation that had fired at U.S. planes on July 24. They also attacked another missile installation 40 miles northwest of Hanoi. One missile launcher was destroyed and another was damaged, but five U.S. planes were shot down in the effort.
On July 24, U.S. bombers on a raid over munitions manufacturing facilities at Kang Chi, 55 miles northwest of Hanoi, were fired at from an unknown launching site. It was the first time the enemy had launched antiaircraft missiles at U.S. aircraft. The presence of ground-to-air antiaircraft missiles represented a rapidly improving air defense capability for the North Vietnamese. As the war progressed, North Vietnam, supplied by China and the Soviet Union, would fashion a very effective and integrated air defense system, which became a formidable challenge to American flyers conducting missions over North Vietnam.