Note: Additional declassified material from this report was released in May 2008 (see link below)Spartans in Darkness: American SIGINT and the Indochina War, 1945-1975
Robert J. Hanyok
Center for Cryptologic History
National Security Agency
2002
Prelude: Indochina Before 1950
Chapter 1 - Le Grand Nombre Des Rues Sans Joie: [Deleted] and the Franco-Vietnamese War, 1950-1954
Chapter 5 - Skunks, Bogies, Silent Hounds, and the Flying Fish: The Gulf of Tonkin Mystery, 2-4 August 1964 (alternate version at the National Security Archive)
Chapter 6 - Xerxes' Arrows: SIGINT Support to the Air War, 1964-1972
Chapter 7 - A Springtime of Trumpets: SIGINT and the Tet Offensive
The Still, Small Voice: Aftermath and Conclusions, 1975 and Beyond
Full Document in a Single File (35 MB) (as released December 2007)
Additional Declassified Material (93 pages, 8 MB) (as released May 2008)
Sources and Resources
- NSA Releases History of American SIGINT and the Vietnam War, Secrecy News, January 7, 2008
- Declassified Study Puts Vietnam Events in New Light by Peter Grier, Christian Science Monitor, January 9, 2008
- Thanks to Michael Ravnitzky
- Tonkin Gulf Intelligence "Skewed" According to Official History and Intercepts, National Security Archive Electronic Briefing Book, 1 December 2005
- Gulf of Tonkin Documents from the National Security Agency