Kammala jumla mai zuwa: Daga bisani an umarci Simpson ya koma yankin Pacific kuma an haɗa shi da hedkwatar Kudu maso Yammacin Pacific Area karkashin Janar Douglas MacArthur. Ya yi aiki a matsayin mataimakin jami'in kayan aiki a lokacin yakin Philippines kuma ya shiga cikin
Yaƙe-yaƙe na Leyte da Manila. Simpson ya kasance a wannan matsayin har zuwa Janairu 1946 kuma ya shiga cikin aikin Japan. Don hidimarsa a ma'aikatan MacArthur, an ba Simpson lambar yabo ta Legion of Merit.