Whakaotihia te rerenga e whai ake nei: I te wehenga o nga whenua o te tonga tekau ma tahi me te pakarutanga o te Pakanga a-iwi, ka uru a Miller ki te Ope Taua o te Uniana. I te 27 o Akuhata 1861, i tukuna e te Kawana Oliver P. Morton a Miller hei Koronela o te 29th Indiana Infantry. Whai muri i te whakangungu, i whakawhiwhia te puhi ki te Kirk's Brigade i roto i te wehenga a Alexander M. McCook i te ope a Buell o Ohio ka haere ki Tennessee. I kite a Miller i te mahi i te rā tuarua o te
Te Pakanga o Hiro, me te wa o te Siege o Koriniti. I arahi a Miller i tana pu i te raki o Alabama me Tennessee ka whai i a Braxton Bragg i Kentucky. I whakahaua e Miller tetahi piriti i raro i a James Negley i te Pakanga o Stones River i te mutunga o Tihema 1862. I te rua o nga ra o te pakanga, i arahi a Miller i te whakaeke a te Federal i te awa o Stones i whakaheke i te whakaeke a John C. Breckinridge. I te wā o tēnei whakaeke ka whara a Miller i te kaki.