The Strategic Hamlet Program was exposed as an almost complete failure in the aftermath of the November 1, 1963 coup that left Diem and his brother Nhu murdered. US officials discovered, for example, that only 20% of the 8600 hamlets that the Diem regime had reported "Complete" met the minimum American standards of security and readiness. The situation had passed the point of possible recovery. The program officially ended in 1964.