What happened as a result of the gulf of tonkin incident in which u. s. and north vietnamese navy ships fired at each other?

The Gulf of Tonkin Resolution was passed by Congress.

Explanation:

The Joint Resolution for the Maintenance of Peace and Security in Southeast Asia was passed by Congress on August 7, 1964, and signed by President Lyndon B. Johnson on August 10 that same year.

Better known as the Gulf of Tonkin Resolution, it´s how Congress empowered President Johnson to send troops to the South of Vietnam and bomb the North, escalating the war in that country.

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