Battle of Muong Khoua
... that after the French defeat at the Battle of Muong Khoua during the French Indochina War, the four surviving soldiers trekked 80 kilometres (50 mi) through the jungle of Laos to safety?
... that after the <a href="./France" id="mwFmQ" rel="mw:WikiLink" title="France">French</a> defeat at the <b id="mwFmU"><a href="./Battle_of_Muong_Khoua" id="mwFmY" rel="mw:WikiLink" title="Battle of Muong Khoua">Battle of Muong Khoua</a></b> during the <a class="mw-redirect" href="./French_Indochina_War" id="mwFmc" rel="mw:WikiLink" title="French Indochina War">French Indochina War</a>, the four surviving soldiers trekked <span about="#mwt67" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"80"},"2":{"wt":"km"}},"i":0}}]}' id="mwFmg" typeof="mw:Transclusion">80 kilometres (50</span><span about="#mwt67" typeof="mw:Entity"> </span><span about="#mwt67">mi)</span> through the jungle of <a href="./Laos" id="mwFmk" rel="mw:WikiLink" title="Laos">Laos</a> to safety?