I te tau 1862, i tohua a Vance hei Kaihauturu Kaihauturu ki a Gen. William Rosecrans i te wa o te Whakatairanga Tullahoma. I whawhai ia i te Pakanga o Farmington i te whakapae o Koriniti. Katahi ka tukuna a Vance ki te whakahau i Bardstown, Kentucky mai i te Oketopa 1862 ki te Hanuere 1863, e tiaki ana i a ia mai i te whakaekenga o te hoia hoia o te Confederate. I te Poutu-te-rangi, i whakatairangahia a Vance ki te Kaiawhina Kaiwhakahaere Matua o te 2nd Brigade, 2nd Division, XX Corps tae noa ki Oketopa. I whawhai ia me te roopu i Liberty Gap me Chickamauga, i whakahuatia i roto i nga korero a Gen. William Carlin mo ana mahi i te wa o te whakaeke whakamutunga. I whakaingoatia e Carlin a Vance hei Aide-de-Camp, i mahi ai ia tae noa ki te Hurae 1864. I whawhai ia ki a Carlin i Lookout Mountain, Missionary Ridge, Resaca
, me te Maunga Kennesaw.