Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Shimomura ɗan asalin Kōchi Prefecture ne, kuma ya kammala karatun aji na 20 na Kwalejin Sojojin Jafananci a 1908. Abokan karatunsa sun hada da Yarima Asaka, Yarima Higashikuni Naruhiko, Yarima Kitashirakawa Naruhisa, Mitsuru Ushijima, Heitarō Kimura, Takashi Sakai, da Shōjirō Iida. Daga baya ya kammala karatunsa daga aji na 28 na Kwalejin Sojojin a shekarar 1916. Bayan ya yi aiki a cikin ma'aikata da dama da kuma mukaman gudanarwa a cikin Babban Jami'in Sojojin Japan, an tura Shimomura zuwa Faransa a matsayin mai ba da shawara na soja a shekarar 1919. Ya koma Ofishin Dabaru da Shirye-shiryen Janar Janar a 1921. Ya shiga cikin tawagar Japan zuwa tattaunawar taron Naval na Geneva daga 1928-1929 da kuma a 1931. Daga 1933-1935 ya kasance kwamandan IJA 1st Heavy Field Artillery Regiment.A cikin 1935, an sanya Shimomura ga ma'aikatan Kwantung Army kuma an daukaka shi zuwa babban janar a 1936. Ya koma Janar Janar a matsayin Shugaban Ofishin na 4 daga 1936 zuwa 1937, kuma na Ofishin na 1 daga 1937 zuwa 1938. Ya kasance mai karfi mai goyon bayan tsarin da ya fi karfi ga gwamnatin Kuomintang a yankin Shanghai kuma shawarwarinsa sun yi tasiri ga shawarar Babban Jami'in Japan don ba da izinin saukar da Sojoji na Goma na Japan a farkon Yaƙin Shanghai. An daukaka Shimomura zuwa laftanar janar a 1939. Ya kasance Kwamandan Makarantar Makami mai linzami a shekarar 1940, kuma an ba shi umurnin filin a shekarar 1942 a cikin rundunar sojojin Japan ta goma sha uku da ke Shanghai da lardunan da ke kewaye da ita da farko a matsayin rundunar sojoji don hana yiwuwar saukowar Allies na Yaƙin Duniya na II a yankin Kogin Yangtze na gabashin tsakiyar China.  Tambaya: Wace sashen ya koma a 1921?
Ofishin Dabaru da Shirye-shiryen Babban Jami'in