A secret cable from 1954 shows a government on the brink, where a single refused order could have turned the South Vietnamese premier into a "rebel" and triggered a military stroke.
Marked Top Secret, this record captures the moment US officials decided Ngo Dinh Diem was a liability, weighing the evacuation of thousands of civilians against a betrayal of a longtime ally.
Bound hands and bullet holes marked the end of the South Vietnamese presidency, a scene transmitted via "Secret; Flash" telegram to Washington in November 1963.
This Top Secret memo from the Eisenhower White House shows how US officials urged the Vietnamese leader to curb his kin's influence while Communist guerrillas moved into Tay Ninh
Top Secret plans from August 1963 show Washington weighing the use of combat forces and the destruction of a palace to ensure the fall of the Ngo family.