What event prompted the United States to increase its military involvement in Vietnam?

the signing of the Geneva Accords
Vietnam’s independence from France
Vietnamese unification under the communists
the attack on the USS Maddox

1 answer

The event that prompted the United States to increase its military involvement in Vietnam was the attack on the USS Maddox. This incident occurred in August 1964 in the Gulf of Tonkin and led to the Gulf of Tonkin Resolution, which granted President Lyndon B. Johnson the authority to increase U.S. military presence in Vietnam.