Whakaotihia te rerenga e whai ake nei: I muri i te whakahoutanga nui i te hotoke o te 1863-1864, ka whawhai a Walker me te Ope o te Potomac i roto i te pakanga o te whenua i te Mei me te Pipiri 1864. Ko te Pakanga o Cold Harbor i te timatanga o Hune i nui te utu ki nga rarangi o te II Corps a ka whara a Walker i tona turi i te wa o te pakanga. I te pakanga o Richmond-Petersburg i muri mai, i tohua a Walker hei koroneela. Heoi, i runga i August 25, 1864, rite eke ia ki te kitea Major General John Gibbon i te mua i roto i te
I te Pakanga Tuarua o te Teihana Ream, i karapotia a Walker, i mauheretia e te 11th Georgia Infantry. I te Akuhata 27, i taea e Walker te mawhiti mai i tetahi pou herehere e haere ana me tetahi atu herehere engari i hopukia e te 51st North Carolina Infantry i muri i tana ngana ki te kaukau i te awa o Appomattox, a tata ana ki te horomia. Whai muri i tana noho hei herehere i Petersburg, ka nekehia ia ki te whare herehere Libby rongonui i Richmond, kei reira hoki tona tuakana. I te Oketopa 1864, i tukuna a Walker me etahi atu herehere e toru tekau hei waahanga o te whakawhiti.