How They Survived and Why We Lost: Central Intelligence Agency Analysis, 1966

The Vietnam war began for the  United States  in 1954; by 1966, the Central Intelligence Agency undertook a major analysis and concluded: We cannot win in Vietnam. Their analysis was kept secret for 40 years and not released --  with redactions --  until  2006. A second version --  with additional  redactions --  was released in 2016. Their analysis was a tragic and accurate prophecy, unheeded. Now pub