Battle of Caishi
... that the Song fleet, armed with bombs launched by trebuchets, defeated the Jin navy in the Battle of Caishi on the Yangtze River during the Jin–Song wars?
... that the <a class="mw-redirect" href="./Song_Dynasty" id="mwBWU" rel="mw:WikiLink" title="Song Dynasty">Song</a> fleet, armed with bombs launched by trebuchets, defeated the <a class="mw-redirect" href="./Jin_Dynasty_(1115–1234)" id="mwBWY" rel="mw:WikiLink" title="Jin Dynasty (1115–1234)">Jin</a> navy in the <b id="mwBWc"><a href="./Battle_of_Caishi" id="mwBWg" rel="mw:WikiLink" title="Battle of Caishi">Battle of Caishi</a></b> on the <a class="mw-redirect" href="./Yangtze_River" id="mwBWk" rel="mw:WikiLink" title="Yangtze River">Yangtze River</a> during the <a class="mw-redirect" href="./Jurchen_campaigns_against_the_Song_Dynasty" id="mwBWo" rel="mw:WikiLink" title="Jurchen campaigns against the Song Dynasty">Jin–Song wars</a>?