Where was the use Maddox when it was fired upon?

The USS Maddox was fired upon in the Gulf of Tonkin, off the coast of North Vietnam. This incident occurred on August 2, 1964, and again on August 4, 1964, leading to increased U.S. involvement in the Vietnam War. The events in the Gulf of Tonkin were pivotal in prompting the U.S. Congress to pass the Gulf of Tonkin Resolution, which granted President Lyndon B. Johnson broad military powers in Vietnam.