Vietnamese railway network
... that during their campaign to sabotage the French-controlled Vietnamese railway network, Viet Minh guerrillas built their own 300 km railway out of tracks stolen from the main line?
... that during their campaign to sabotage the <a href="./French_Indochina" id="mwERA" rel="mw:WikiLink" title="French Indochina">French</a>-controlled <b id="mwERE"><a href="./Rail_transport_in_Vietnam" id="mwERI" rel="mw:WikiLink" title="Rail transport in Vietnam">Vietnamese railway network</a></b>, <a href="./Viet_Minh" id="mwERM" rel="mw:WikiLink" title="Viet Minh">Viet Minh</a> <a class="mw-redirect" href="./Guerrilla" id="mwERQ" rel="mw:WikiLink" title="Guerrilla">guerrillas</a> built their own <span about="#mwt59" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"Nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"300 km"}},"i":0}}]}' id="mwERU" typeof="mw:Transclusion">300 km</span> railway out of tracks stolen from the <a class="mw-redirect" href="./North–South_Railway_(Vietnam)" id="mwERY" rel="mw:WikiLink" title="North–South Railway (Vietnam)">main line</a>?