<a href="https://en.wikipedia.org/wiki/Second_Boer_War" id="mwZA" rel="mw:WikiLink" title="Second Boer War">Second Boer War</a>: <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Boer" id="mwZQ" rel="mw:WikiLink" title="Boer">Boers</a>, led by <a href="https://en.wikipedia.org/wiki/Koos_de_la_Rey" id="mwZg" rel="mw:WikiLink" title="Koos de la Rey">Koos de la Rey</a>, inflict the biggest defeat upon the <a href="https://en.wikipedia.org/wiki/British_Empire" id="mwZw" rel="mw:WikiLink" title="British Empire">British</a> since the beginning of the war, at <a href="https://en.wikipedia.org/wiki/Battle_of_Tweebosch" id="mwaA" rel="mw:WikiLink" title="Battle of Tweebosch">Tweebosch</a>.