Ka dib markii dib loo abaabulay xilligii qaboobaha ee 1863 <unk> 1864, Walker iyo Ciidanka Potomac waxay ku dagaalameen Ololaha Dhulka ee May iyo Juun 1864. Dagaalkii Cold Harbor ee bilowgii bishii Juun wuxuu khasaare weyn ku yeeshay safka ciidanka II Corps iyo Walker ayaa dhaawacmay jilibkiisa intii uu socday dagaalka. Dagaalkii Richmond-Petersburg, Walker waxaa loo magacaabay kornayl. Si kastaba ha ahaatee, bishii August 25, 1864, markii uu raacay si uu u helo Maj. Gen. John Gibbon horteeda intii lagu jiray Dagaalkii Labaad ee Ream's Station
Walker waxaa hareereeyay oo qabtay ciidanka 11aad ee Georgia. Bishii Ogosto 27, Walker wuxuu awooday inuu ka baxsado safka maxaabiista ee socday maxbuus kale, laakiin waxaa dib u qabtay Ciidanka 51aad ee Waqooyiga Carolina ka dib markii uu isku dayay inuu ka gudbo Wabiga Appomattox oo ku dhawaad uu liqay. Ka dib markii lagu xiray Petersburg, waxaa loo wareejiyay xabsiga Libby ee Richmond, halkaas oo walaalkiis ka weyn sidoo kale lagu xiray. Bishii Oktoobar 1864, Walker waxaa la sii daayay soddon maxbuus oo kale oo qayb ka ah is-weydaarsiga.