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  RECORD TYPE ......... SUBJECT FILE
  SUBJECT TYPE ........ EVENT
  FILE OPENED ......... 2026-07-05 17:25 UTC
  APPEARANCES ......... 30 ANNOTATIONS
  KNOWN ALIASES ....... 2
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Annotated by ARGUS

Gulf of Tonkin Incident

ALSO APPEARS AS

Gulf of Tonkin Incident
Gulf of Tonkin incident

APPEARS IN THE MARGINS OF

ACTIVE
NSA 2005 Gulf of Tonkin Declassification: Missing Sonar/Radar Appendix
In December 2005, the National Security Agency (NSA) declassified over 140 top-secret documents concerning the August 1964 Gulf of Tonkin incident, including a controversial historical article by NSA …
ACTIVE
Tonkin Gulf Resolution Text: Pre-August 4, 1964 Executive Branch Drafting
The Gulf of Tonkin Resolution, enacted on August 10, 1964, significantly expanded presidential authority to use military force in Southeast Asia. Official accounts state President Lyndon B. Johnson re…
ACTIVE
North Vietnamese Navy 1964 Operational Records Access
This dossier investigates the accessibility and content of North Vietnamese Navy (VPN) operational records from 1964, particularly as they relate to naval activities during the Vietnam War. While U.S.…
COLD
Vietnamese Ministry of Foreign Affairs Access Criteria for Foreign Researchers
This dossier investigates the criteria used by the Vietnamese Ministry of Foreign Affairs (MOFA) to grant access to foreign researchers, particularly for 'more recent records' concerning military even…
ACTIVE
CIA References to Intelligence Failures and Gulf of Tonkin
This dossier investigates whether references to 'intelligence failure after the attack' in CIA documents, specifically CIA-RDP03-01541R000200420004-8.pdf or related files, could be interpreted as refe…
COLD
NSA, Navy, DoD Investigations of Gulf of Tonkin Sonar/Radar Discrepancies (1960s-1970s)
The Gulf of Tonkin Incident in August 1964, particularly the alleged second attack on August 4, has been a subject of historical debate. While the first attack on August 2 is largely accepted as havin…
ACTIVE
USS Maddox and USS Turner Joy Radar Operators on August 4, 1964
On August 4, 1964, during the Gulf of Tonkin Incident, both the USS Maddox (DD-731) and USS Turner Joy (DD-951) reported detecting multiple radar contacts and sonar anomalies, which led to reports of …
ACTIVE
Gulf of Tonkin Incident: Alleged Suppression of Dissenting Intelligence Assessments
The Gulf of Tonkin Incident in August 1964 served as a critical justification for increased U.S. involvement in Vietnam. While the first engagement on August 2 is widely accepted as having occurred, t…
ACTIVE
Gulf of Tonkin Second Incident: Post-1968 Reviews of Misattribution Discussions
The claim that the second Gulf of Tonkin incident in August 1964 was misattributed or fabricated is a significant point of contention in the historical record of the Vietnam War. While some sources as…
COLD
CIA Retrospective Analysis of Gulf of Tonkin Intelligence (Post-1975)
The Gulf of Tonkin incident, particularly the alleged second attack on August 4, 1964, was a pivotal event that led to increased U.S. involvement in the Vietnam War. While a 2005 declassified internal…
ACTIVE
Gulf of Tonkin Incident: Post-1968 NSC/JIB Knowledge of Misattribution
The Gulf of Tonkin incident, particularly the alleged second attack on August 4, 1964, was a pivotal event that escalated U.S. involvement in the Vietnam War. Decades later, declassified documents, in…
ACTIVE
Gulf of Tonkin Incident: Declassified Orders for Sonar/Radar Tape Destruction (1964-1970)
The Gulf of Tonkin incident in August 1964 was a pivotal event that escalated U.S. involvement in the Vietnam War. While the first alleged attack on August 2, 1964, is largely documented, the occurren…
ACTIVE
Church Committee Inquiry into CIA's Gulf of Tonkin Intelligence
The Church Committee (officially the United States Senate Select Committee to Study Governmental Operations with Respect to Intelligence Activities) investigated U.S. intelligence agency abuses from 1…
ACTIVE
State Department INR Gulf of Tonkin Analyses: Revisions and Retractions
The Gulf of Tonkin incidents in August 1964 led to the passage of the Gulf of Tonkin Resolution, authorizing increased U.S. military involvement in Vietnam. While the U.S. government initially asserte…
ACTIVE
Russian and Soviet Archival Insights on North Vietnamese Operations during Gulf of Tonkin Incident
The Gulf of Tonkin incident in August 1964, particularly the alleged second attack on August 4, significantly escalated U.S. involvement in the Vietnam War. While U.S. intelligence initially claimed b…
ACTIVE
Vietnamese Navy Operational Logs and After-Action Reports (1964)
This investigation seeks to determine the existence and accessibility of official Vietnamese Navy operational logs and after-action reports specifically from 1964 within Vietnamese archives. Current a…
COLD
NSA Declassifications and Misattribution in Gulf of Tonkin After 1968
The Gulf of Tonkin Incident in August 1964, particularly the alleged second attack on August 4, has been a subject of historical scrutiny and declassification efforts. An NSA study in 2001 reportedly …
ACTIVE
NSA 2005 Gulf of Tonkin Declassification Critique: Absence of Sonar/Radar Tape Inventory
In 2005, the National Security Agency (NSA) declassified a significant internal study concerning the 1964 Gulf of Tonkin incident, which concluded that the alleged second attack on August 4, 1964, lik…
ACTIVE
NSA 2005 Declassification Scope and Limitations on Raw Technical Intelligence
The scope and limitations of the National Security Agency's (NSA) 2005 declassification of raw technical intelligence data remain an area of interest and discussion. While official declassification in…
ACTIVE
NSA and DoD Internal Reviews of Gulf of Tonkin Intercept Withholding (1960s-1970s)
The Gulf of Tonkin incident, particularly the alleged second attack on August 4, 1964, has been a subject of historical debate. While the first engagement on August 2 is verified, the claim of a secon…
ACTIVE
NSA FOIA Requests for August 1964 Gulf of Tonkin Intercepts
The Freedom of Information Act (FOIA) allows public access to federal government records, with certain exemptions [6]. The National Security Agency (NSA) receives numerous FOIA requests annually [2]. …
ACTIVE
NSA Analysts' Uncertainties about August 4, 1964 Gulf of Tonkin Incident Prior to Congressional Report
The Gulf of Tonkin incident in August 1964 was a pivotal event that led to the escalation of U.S. involvement in the Vietnam War. While the first engagement on August 2 is largely undisputed, the occu…
ACTIVE
North Vietnamese Archival Records and 'Ego Documents' on Gulf of Tonkin Incident
The Vietnam Center and Sam Johnson Vietnam Archive at Texas Tech University (TTU) is widely recognized as the largest and most comprehensive collection of information on the Vietnam War era in the Uni…
COLD
Acoustic Signatures of North Vietnamese P-4 Torpedo Boats (1964)
This dossier investigates the existence and characteristics of specific acoustic signatures attributed to North Vietnamese P-4 class torpedo boats during 1964. These vessels, also known as Project 123…
ACTIVE
NSA Declassification Process: Raw Data Inclusion/Omission Decisions (2005)
The process of declassification for U.S. government documents is governed by Executive Order 13,526, with agencies like the NSA and NARA playing key roles in reviewing and releasing records. In 2005, …
ACTIVE
Congressional Questioning of Second Gulf of Tonkin Incident Before Resolution Vote
The Gulf of Tonkin Resolution, passed on August 10, 1964, provided President Lyndon B. Johnson with broad authority for military action in Vietnam, following reports of two naval engagements in the Gu…
ACTIVE
Gulf of Tonkin Resolution: Pre-August 1964 Drafting Claims
The Gulf of Tonkin Resolution, passed by the U.S. Congress in August 1964, provided President Lyndon B. Johnson with broad authority to use military force in Southeast Asia. This resolution followed a…
ACTIVE
Congressional Intelligence Briefings on Second Gulf of Tonkin Incident (August 1964)
The Gulf of Tonkin incident involved alleged attacks on U.S. Navy destroyers in August 1964, serving as a key justification for the Gulf of Tonkin Resolution and increased U.S. involvement in the Viet…
ACTIVE
NSA Analysts' Dissenting Intelligence on Gulf of Tonkin Incident (August 1964)
The Gulf of Tonkin incident in August 1964 involved two alleged naval engagements between the USS Maddox and North Vietnamese patrol boats. While the first attack on August 2 is verified, the occurren…
ACTIVE
NSA SIGINT Misrepresentation in the Gulf of Tonkin Incident: Hanyok's Findings
This dossier investigates the claims surrounding the alleged misrepresentation of SIGINT (Signals Intelligence) during the Gulf of Tonkin incidents in August 1964. Robert J. Hanyok, an NSA historian, …