Whakaotihia te rerenga e whai ake nei: I te tau 1857 ka rere a Rigault de Genouilly i runga i te kaipuke "Némésis" ki te whakauru atu ki te kaipuke moana i whakahiatohia e Admiral Léonard Charner mo te Pakanga Tuarua Opium, a ka whakanohoia hei rangatira mo te wehenga moana French. I te wā o te pakanga i whai wāhi ia ki te poraka o Macau, ā, i hopu i te
te hopu i a Canton.