Question

select all the correct answers.
which three events changed us policies in vietnam?
ngo dinh diems lack of religious tolerance
the establishment of french colonial rule
war opposition by american celebrities
the gulf of tonkin incident
the success of the ho chi minh trail

Explanation:

1. Ngo Dinh Diem's repression of Buddhist groups (lack of religious tolerance) sparked domestic unrest in South Vietnam, eroding U.S. support for his regime and forcing policy shifts to address the instability.
2. The Gulf of Tonkin incident in 1964 led Congress to pass the Gulf of Tonkin Resolution, granting the president broad authority to escalate U.S. military involvement in Vietnam.
3. The success of the Ho Chi Minh Trail allowed North Vietnam to steadily supply troops and resources to the south, showing the limits of U.S. counterinsurgency efforts and pushing policy adjustments (such as expanded bombing campaigns).

French colonial rule predated major U.S. policy involvement, and celebrity opposition was a cultural side note rather than a direct driver of formal policy changes.

Answer:

• Ngo Dinh Diem's lack of religious tolerance
• the Gulf of Tonkin incident
• the success of the Ho Chi Minh Trail