Events
Gulf of Tonkin incident (2–4 August 1964)
Documented · occurred Handling What these labels mean →On 2 Aug 1964 North Vietnamese torpedo boats attacked USS Maddox on a DESOTO signals-intelligence patrol, as covert OPLAN 34A raids hit the coast nearby. On 4 Aug, Maddox and Turner Joy reported a second attack at night in heavy seas. President Johnson ordered retaliatory strikes the same night, and Congress passed the Gulf of Tonkin Resolution on 7 Aug (House 416–0, Senate 88–2), authorizing escalation in Vietnam. The NSA's own historian (Hanyok, declassified 2005) concluded the 4 Aug attack did not occur and that NSA's reporting was skewed to support one: 15 of 122 intercepts used.
Ties
| To | Role | Years | Verdict | Source |
|---|---|---|---|---|
| Suppression pattern | case: SKEWED INTELLIGENCE, CLASSIFY (~41 yrs), DELAY | 1964–2005 | Documented · occurred Handling | nsa.gov |
| Project Azorian - Glomar Explorer (1974) | parallel: covert operation + public cover story in the same era | 1964–1974 | Concept |
Tied from
| From | Role | Years | Verdict | Source |
|---|---|---|---|---|
| Operation Northwoods (1962) | pattern: pretext for a military action | 1962–1964 | Concept | |
| September 11 attacks - WTC and the record (2001) | pattern: an event later used to authorize war (Iraq/AUMF) | 1964/2001 | Concept | |
| USS Liberty (1967) | a 1960s naval SIGINT incident with a disputed official record | 1964/1967 | Concept |
Links
- NSA: Hanyok, 'Skunks, Bogies, Silent Hounds, and the Flying Fish' (PDF)
- NSA: The Gulf of Tonkin incident, DESOTO patrols and OPLAN 34A (PDF)
- National Archives: Tonkin Gulf Resolution
- USNI Proceedings (2010): Tonkin, setting the record straight
- Wikipedia: Gulf of Tonkin incident
- Spokesman-Review (1995): McNamara asks Giap
Documented
| Item | Record | Tag |
|---|---|---|
| 2 Aug 1964: NVN torpedo boats attack USS Maddox (DESOTO SIGINT patrol) near OPLAN 34A raid activity | NSA histories | 2 Aug attack |
| 4 Aug: 'second attack' reported at night, heavy seas; Cdr James Stockdale, overhead in a Crusader, saw no enemy boats | NSA; USNI | Stockdale saw none |
| Capt. Herrick's same-night cable: many reported contacts 'doubtful'; freak weather and overeager sonarmen; urged a 'complete evaluation' before further action | Wikipedia (cable widely reproduced) | Herrick doubt |
| Retaliatory strikes ordered 4 Aug; Resolution passed 7 Aug (416–0; 88–2, Morse and Gruening against) | National Archives | resolution |
| Hanyok (NSA, written 2001, declassified 2005): 'no attack' on 4 Aug; NSA summaries 'deliberately skewed'; 15 of 122 intercepts used | NSA | NSA history |
| McNamara–Giap (1995): Giap says 'absolutely nothing' happened on 4 Aug; McNamara later wrote there was no second attack | Press; McNamara | McNamara/Giap |
Alleged (stated neutrally)
| Item | Source | Tag |
|---|---|---|
| The administration knowingly used a non-event to obtain a pre-drafted war authorization | Critics; a draft resolution existed before August (William Bundy, spring 1964) | intent |
How it was handled
| Method | What happened | Tag |
|---|---|---|
| SKEWED INTELLIGENCE | NSA reporting selected intercepts that fit an attack | skewed SIGINT |
| OMIT | Congress wasn't told of OPLAN 34A raids or the on-scene doubts before voting | context withheld |
| CLASSIFY/DELAY | Hanyok's 2001 study held until 2005; SIGINT set released 41 years later | delayed release |
Gaps
- Full NSC/White House deliberations of 4 Aug (LBJ Library tapes are partly public).