South Vietnamese generals plotted to overthrow Ngô Đình Diệm while treating US demands for reform as a joke. This Secret memorandum remained hidden in National Security Files for decades.
Ngô Đình Diệm was betrayed by his own military leadership while Top Secret memos tracked the movement of tanks and brigades, with certain names still blacked out today.
President Ngô Đình Diệm and his brother were executed in a CIA-backed coup, but the State Department spent a secret Senate hearing scrubbing the record of American fingerprints.
President Ngô Đình Diệm pleaded for American boots on the ground to hold an airport while his own generals were held captive in the Presidential Palace.
President Ngô Đình Diệm lived on borrowed time while Washington debated whether to trigger his removal, an "Eyes only" directive that kept the plot in suspense for a few more weeks.