How did the gulf of tonkin resolution escalate the vietnam war?

The Tonkin Resolution was a resolution that gave President Lyndon B. Johnson the authority to conduct military operations in Southeast Asia without a formal declaration of war by Congress.

The immediate reason for the resolution was the Tonkin incident, in which five North Vietnam torpedo boats attacked the US destroyer USS Maddox in the Gulf of Tonkin and a possible second attack on August 4, 1964. In retaliation, the US Air Force bombed North Vietnam for the first time.

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