On the 7^th August 1964, the Gulf of Tonkin Resolution was passed by the United States Congress.

The joint resolution granted powers to President Lyndon B. Johnson to use military force to assist countries in Southeast Asia facing so-called “communist aggression”. Many critics of the war condemned Congress for granting Johnson a “blank cheque” to escalate American military involvement in the Vietnamese conflict. At the time, however, it passed unanimously through the House of Representatives and only two Senators opposed the resolution.

The Resolution was a response to the Gulf of Tonkin Incident that had taken place just a few days earlier, in which the North Vietnamese Navy was blamed for attacking US ships on two separate occasions. While it is accepted that the USS Maddox did exchange fire with three enemy torpedo boats on the 2^nd August, the claim that it was attacked again on the 4^th August is now known to be false.

Even at the time it was acknowledged that the second attack may not have actually happened. Captain John J. Herrick, the commander of the Maddox, had spent four hours firing at enemy ships picked up on radar. However, he sent a message just a few hours later saying that no enemy boats had actually been sighted and so the radar may have malfunctioned. However, the President was not informed of this before going on television to announce that US ships had been attacked. Johnson’s desire to retaliate led to the Resolution, and this in turn led to the USA escalating its involvement in the Vietnam War.