Kammala jumla mai zuwa: Kusaka ya kasance tare da rundunar jiragen ruwa har zuwa Nuwamba 1942, kuma ya yarda da wasu mukamai na ma'aikata bayan haka. An daukaka shi zuwa mataimakin Admiral a ranar 1 ga Mayu 1944 kuma an tura shi zuwa Rundunar Sojan Ruwa a matsayin Shugaban Ma'aikata a karkashin kwamandan kwamandan Soemu Toyoda a watan Nuwamba 1944. Aikinsa na karshe shi ne ya zama kwamandan rundunar sojin sama ta 5 bayan da Matome Ugaki ya kashe kansa, a daidai ranar da
Japan ta mika wuya ga Allies.