A <a href="https://en.wikipedia.org/wiki/Mongols" id="mwGA" rel="mw:WikiLink" title="Mongols">Mongol</a> victory at the <a href="https://en.wikipedia.org/wiki/Battle_of_Yamen" id="mwGQ" rel="mw:WikiLink" title="Battle of Yamen">Battle of Yamen</a> ends the <a href="https://en.wikipedia.org/wiki/Song_dynasty" id="mwGg" rel="mw:WikiLink" title="Song dynasty">Song dynasty</a> in China.