What was the impact of the Gulf of Tonkin Resolution?

A.
The war in Vietnam ended.

B.
The American involvement in Vietnam escalated.

C.
The Vietcong launched the Tet Offensive.

D.
The French turned over control of Vietnam to the United States.

The correct answer is B. The Gulf of Tonkin Resolution, passed by the US Congress in 1964, authorized the President to take any measures necessary to repel any armed attack against the forces of the United States and to prevent further aggression. This resolution led to the escalation of American involvement in the Vietnam War, with increased military presence and an expansion of bombing missions.