escaped through a tunnel in an attempt to evade capture
...that rebels from the South Vietnamese army fought the loyalists of Ngo Dinh Diem for the Presidential Palace in a 1963 coup, not realising that Diem had escaped through a tunnel in an attempt to evade capture?
...that rebels from the <a class="mw-redirect" href="./ARVN" id="mwC3o" rel="mw:WikiLink" title="ARVN">South Vietnamese army</a> fought the loyalists of <a href="./Ngo_Dinh_Diem" id="mwC3s" rel="mw:WikiLink" title="Ngo Dinh Diem">Ngo Dinh Diem</a> (<i id="mwC3w">pictured</i>) for the Presidential Palace in a <a class="mw-redirect" href="./1963_South_Vietnamese_coup" id="mwC30" rel="mw:WikiLink" title="1963 South Vietnamese coup">1963 coup</a>, not realising that Diem had <b id="mwC34"><a class="mw-redirect" href="./Arrest_and_assassination_of_Ngo_Dinh_Diem" id="mwC38" rel="mw:WikiLink" title="Arrest and assassination of Ngo Dinh Diem">escaped through a tunnel in an attempt to evade capture</a></b>?