The Gulf of Tonkin incident, 40 years later

This electronic briefing book includes John Prados analysis of the intercepts, together with audio files and transcripts of the key Tonkin Gulf conversations between President Johnson and Defense Secretary Robert McNamara, as well as photographs and charts from the Tonkin Gulf incident, a documentary chronology, a CIA Special National Intelligence Estimate on possible North Vietnamese responses to U.S. actions from May 1964, and links to other National Security Archive publications on Vietnam.