According to one source, CIA Director Richard Helms "used his influence with Lyndon Johnson to warn about the growing dangers of U.S. involvement in Vietnam." On the other hand, Stansfield Turner (DCI 1977–1981) describes Helms in his advisory relationship to Lyndon Johnson as being overly loyal to the office of president. Hence, the CIA staff's frank opinions on Vietnam were sometimes modified before reaching President Johnson. At one point the CIA analysts estimated enemy strength at 500,000, while the military insisted it was only 270,000. No amount of discussion could resolve the difference. Eventually, in September 1967, the CIA under Helms went along with the military's lower number for the combat strength of the Vietnamese Communist forces. This led a CIA analyst directly involved in this work to file a formal complaint against DCI Helms, which was accorded due process within the Agency.