How did the Gulf of Tonkin Resolution affect the course of the Vietnam War?

(1 point)
Responses

It was a major political victory for the Vietcong.
It was a major political victory for the Vietcong.

It convinced Americans that the domino theory was correct.
It convinced Americans that the domino theory was correct.

It caused Americans to take an active role in the fighting.
It caused Americans to take an active role in the fighting.

It contributed to the growth of an antiwar protest movement.

It caused Americans to take an active role in the fighting.

The Gulf of Tonkin Resolution gave President Lyndon B. Johnson authorization to commit US military forces in Vietnam, leading to a significant escalation of US involvement in the war. This decision ultimately contributed to the growth of the antiwar protest movement as the conflict continued and casualties mounted.