<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngemva kokuwa kweVicksburg, isigaba sika-Osterhaus sathuthelwa eTennessee. Emkhankasweni waseChattanooga wasiza uMajor General uJoseph Hooker ekuthatheni iLookout Mountain  <response>: . futhi. U-Osterhaus wabe esehlanganyela eMkhankasweni wase-Atlanta kodwa ikhefu lokugula elingathatha inyanga lonke lamenza waphuthelwa iMpi ebalulekile yase-Atlanta. Kodwa-ke, wabuyela ekulawuleni futhi wadlala indima ebalulekile eMpini yaseJonesborough. Ngemuva kokuthumba i-Atlanta, wathola umyalo we-XV Corps, enye yezinhlangano ezine lapho ibutho lahlanganiswa khona, kuMashi kaSherman oya olwandle. NgoMashi 1865 u-Osterhaus waqokwa njengenhloko yezikhulu eMnyangweni Wezempi waseNtshonalanga yeMississippi ngaphansi komyalo kaMaj. Gen. Edward Canby, umkhuzi onolwazi oluncane lokulwa. U-Osterhaus wakhonza uCanby ngezimpi zaseSpanish Fort naseFort Blakely. Lapho u-Edmund Kirby Smith enikezela amabutho ase-Confederate eTrans-Mississippi Theatre, u-Osterhaus wathunyelwa njengommeleli kaCanby futhi ngenxa yalokho wasayina mathupha amadokhumende egameni lempi yase-Union. 