sentences:  US Secretary of Defense Robert McNamara criticised the arrangement, and in early January 1964, Đính was relieved by General Khiệm, who had been the head of the armed forces until being demoted after the coup against Diệm, and he set about overthrowing the MRC.Đính's political stay was brief, as General Nguyễn Khánh, who was disgruntled at not receiving a high position after Diệm's removal, deposed the MRC with the support of Khiệm on 30 January 1964, without firing a shot.Khánh used the coup to exact retribution against Generals Đôn, Đính, Xuan and Lê Văn Kim.