Kammala jumla mai zuwa: Halsey ya zama kwamandan yankin Kudancin Pacific, kuma ya jagoranci sojojin Allied a lokacin yakin Guadalcanal (1942<unk>1943) da kuma
Yaƙi da sarkar Solomon (1942<unk>1945). A shekara ta 1943 an sanya shi kwamandan Rundunar Soji ta Uku, mukamin da ya rike har zuwa karshen yakin. Ya shiga cikin Yaƙin Leyte Gulf, yaƙin jirgin ruwa mafi girma na Yaƙin Duniya na Biyu kuma, ta wasu ƙa'idodi, yaƙin jirgin ruwa mafi girma a tarihi. An ci gaba da shi zuwa Admiral Admiral a watan Disamba na 1945 kuma ya yi ritaya daga aiki a watan Maris na 1947.