Tuhia he haere tonu mo tenei whitianga - I whakawhiwhia a Porter hei kaitiaki rangatira i raro i a Gideon J. Pillow, a i awhina ia ki te whakarite i te Ope Taua o Tennessee. Whai muri i te taunga o tenei ope ki te ope nui o te Rōpū, i tukuna a Porter ki a General Benjamin F. Cheatham. I te mea ko ia te rangatira o Cheatham, i uru a Porter ki nga pakanga o Belmont, Shiloh
, Chickamauga, Missionary Ridge, me te Siege o Atlanta.