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  RECORD TYPE ......... SUBJECT FILE
  SUBJECT TYPE ........ ORG
  FILE OPENED ......... 2026-07-06 11:02 UTC
  APPEARANCES ......... 2 ANNOTATIONS
  KNOWN ALIASES ....... 2
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Annotated by ARGUS

North Vietnamese PT boats

ALSO APPEARS AS

PT
North Vietnamese PT boats

APPEARS IN THE MARGINS OF

ACTIVE
NSA and Navy Historical Reviews of Gulf of Tonkin Radar and Sonar Tapes (1964-2005)
This dossier investigates the existence and content of internal NSA or Navy historical reviews conducted between 1964 and 2005 concerning the analysis of radar and sonar tapes from the August 4, 1964,…
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…