How did the Gulf of Tonkin Resolution lead to the escalation of US troop involvement in the Vietnam War?

The Gulf of Tonkin Resolution authorized the president to take military action in Southeast Asia without seeking a separate declaration of war or specific approval for each troop deployment from Congress. This broad authority allowed President Johnson to increase US troop involvement as the war escalated. The resolution did not formally declare war on North Vietnam or itself commit the first US troops to combat.

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