shootings of nine Buddhists who were protesting the ban
...that the banning of the Buddhist flag and the subsequent shootings of nine Buddhists who were protesting the ban on the birthday of Gautama Buddha led to civil unrest which toppled Ngo Dinh Diem's regime?
...that the banning of the <a href="./Buddhist_flag" id="mwzg" rel="mw:WikiLink" title="Buddhist flag">Buddhist flag</a> and the subsequent <b id="mwzw"><a class="mw-redirect" href="./Hue_Vesak_shootings" id="mw0A" rel="mw:WikiLink" title="Hue Vesak shootings">shootings of nine Buddhists who were protesting the ban</a></b> on the <a href="./Vesak" id="mw0Q" rel="mw:WikiLink" title="Vesak">birthday</a> of <a class="mw-redirect" href="./Gautama_Buddha" id="mw0g" rel="mw:WikiLink" title="Gautama Buddha">Gautama Buddha</a> led to civil unrest which toppled <a href="./Ngo_Dinh_Diem" id="mw0w" rel="mw:WikiLink" title="Ngo Dinh Diem">Ngo Dinh Diem</a>'s regime?