On 21 August 1963 , Tung 's men , acting on Nhu 's orders , raided the Xá Lợi Pagoda , Saigon 's main Buddhist temple . The attacks were replicated across the nation , leaving a death toll estimated to be in the hundreds . The pagodas suffered extensive damage and a further 1,400 monks and nuns were arrested . The attacks occurred after Nhu had tricked a group of Army of the Republic of Vietnam ( ARVN ) generals into agreeing to declare martial law . He knew the generals were plotting and hoped to exploit martial law to overthrow his brother , but outmanoeuvred them by sending Tung 's special forces into the pagodas disguised as regular ARVN soldiers . As a result , South Vietnam 's Buddhist majority initially thought the regular army had attacked the monks , damaging its generals ' credibility among the populace as potential leaders of the country . Following the attacks , U.S. officials threatened to withhold aid to the special forces unless they were used to fight communists rather than attacking political or religious dissidents
raided the Xá Lợi Pagoda
Xá Lợi Pagoda raids
Lê Quang Tung