The destroyer USS Maddox (DD-731) is attacked by North Vietnamese patrol boats in the Gulf of Tonkin. A second incident, involving USS Turner Joy (DD-731), reportedly occurs two days later. Congress passes the Gulf of Tonkin Resolution on Aug. 7.
Secretary of Defense Austin Lloyd III met with his counterparts from Australia, Japan and the Philippines to discuss bolstering defense ties on May 2. The discussion included plans for joint F-35 exercises with Japan and Australia in the coming years.