Whakaotihia te rerenga e whai ake nei: I te Pakanga o Mexico ki Amerika, i whawhai a Granger ki te ope a Winfield Scott. I uru ia ki te Siege o Veracruz, te Pakanga o Cerro Gordo, te Pakanga o Contreras, te
Ko te Pakanga o Churubusco, me te Pakanga o Mexico City. I whakawhiwhia a Granger ki nga korero e rua mo te toa, a, i te marama o Mei 1847, i whakawhiwhia ki a ia tana komihana auau hei tuarua tuarua. I muri i te pakanga, i mahi ia i te rohe ki te hauauru i Oregon, kātahi ki Texas. I te tau 1853 ka riro ia hei rangatira tuatahi.