August 1964Reputable sourceWell documented
The Gulf of Tonkin
On the timeline · around August 1964 ·
What happened
After U.S. destroyers reported clashes with North Vietnamese boats in the Gulf of Tonkin, Congress passed the Gulf of Tonkin Resolution on August 7, 1964, giving President Johnson sweeping authority to wage war without a formal declaration.
Why it matters
The resolution became the legal foundation for full-scale American war in Vietnam — obtained on a pretext that would later fuel deep public distrust.
How we know
Doubts later emerged, and declassified records indicate the reported second attack on August 4 almost certainly never occurred.
Sources
Related timelines
- American History → — The blank check for war