A flight of Air Force F-4C Phantoms is attacked by three MiG-17s in the first air-to-air combat of the war over North Vietnam. The MiGs make unsuccessful passes before fleeing to the sanctuary of the Communist capital area.
Navy Adm. Samuel J. Paparo Jr. assumed leadership of the U.S. Indo-Pacific Command, succeeding Navy Adm. John Aquilino at a change of command ceremony, urging action amid China's “increasing intrusive and expansionist claims,” on May 3