January
January 2 - Seven North Vietnamese Mikoyan-Gurevich MiG-21s are destroyed by F-4 Phantoms of the 8th Tactical Fighter Wing USAF in Operation Bolo
January 2 - the contracts for the development of the Boeing SST and its engines are awarded
February
February 22 - 845 of the 173rd Airborne Brigade take part in Operation Junction City, the only paratrooper assault of the Vietnam War
February 26 - US Navy A-6 Intruders of VA-35 drop sea mines in the mouth of the Song C ...