According to William Duiker, United States Foreign Officer and East-Asian professor, the training efforts, called "Civilian Irregular Defense Groups" (CIDG), were plagued with problems of arbitrary authority on the part of Vietnamese authorities and officers. During the summer of 1964, "...Vietnamese arrogance led immediately to problems, and in September a serious revolt broke out among the Rhadé [sic] tribesmen in Ban Me Thout[sic]. Only with the aid of U.S. advisers was the crisis defused."
