Whakaotihia te rerenga e whai ake nei: I haere a Robinson ki Corpus Christi, Texas, i te Mahuru 1845 ki te whakauru atu ki a Gen. Winfield Scott me te Army of Occupation hei rangatira rangatira me te brigade quartermaster. I te Pipiri 1846, i whakatairangahia a Robinson ki te rangatira tuatahi, a, i mahi ia i te Pakanga Mexico-American, i whawhai ki te rereketanga i te Pakanga o Monterey. I mahi hoki ia i nga pakanga o
Ko Palo Alto me Resaca de la Palma. I mahi ia hei kaitiaki o te regimental, o te brigade ranei i waenga i te Poutu-te-rangi 28, 1847 me te Hepetema 1, 1847 me waenga i te Hanuere 27, 1849 me te Akuhata 12, 1850.