Quảng Đức 's act increased international pressure on Diệm and led him to announce reforms with the intention of mollifying the Buddhists . However , the promised reforms were not implemented , leading to a deterioration in the dispute . With protests continuing , the ARVN Special Forces loyal to Diệm 's brother , Ngô Đình Nhu , launched nationwide raids on Buddhist pagodas , seizing Quảng Đức 's heart and causing deaths and widespread damage . Several Buddhist monks followed Quảng Đức 's example , also immolating themselves . Eventually , a U.S.-backed Army coup toppled Diệm , who was assassinated on 2 November 1963
nationwide raids
Xá Lợi Pagoda raids
Thích Quảng Đức