Tonkin Gulf and the Escalation of the Vietnam War,

"On July 31, the U.S. Navy destroyer USS Maddox (DD-731) began a reconnaissance cruise off the coast of North Vietnam. On August 2, three North Vietnamese torpedo boats attacked the ship. On the night of August 4, the Maddox and another destroyer, the USS Turner Joy (DD-951), expecting to be attacked, saw what they interpreted as hostile torpedo boats on their radars and reported themselves under ...