 The suppression of Buddhists' civil rights and violent crackdowns on demonstrations, along with the self-immolation of at least five Buddhist monks led to a US-backed military coup in November 1963 in which Diệm and Nhu were deposed and assassinated.From 1964 onwards, Thích Trí Quang was prominent in Buddhist-dominated demonstrations against the military junta of Nguyen Khanh, accusing the general of authoritarianism and not doing enough to remove Diem supporters from positions of power, and then being prominent in protests against the junta of Air Marshal Nguyen Cao Ky, who had fired the pro-Buddhist General Nguyen Chanh Thi from his post in central Vietnam, a Buddhist stronghold.The civil unrest lasted for three months until Ky militarily crushed the Buddhist activists, ending their influence over South Vietnamese politics.