3 ▁August ▁( just ▁after ▁the ▁surrender ▁of ▁Japan ), ▁was ▁appointed ▁final ▁Army ▁Minister ▁under ▁the ▁Sh ide h ara ▁cabinet . ▁One ▁of ▁the ▁reasons ▁for ▁his ▁selection ▁was ▁that ▁he ▁had ▁never ▁been ▁involved ▁in ▁host ilities ▁against ▁the ▁United ▁States ▁at ▁any ▁point ▁in ▁his ▁military ▁career . ▁Sh im om ura ▁was ▁also ▁concurrent ly ▁the ▁final ▁Ins pect or - General ▁for ▁Military ▁Training . ▁His ▁primary ▁task ▁was ▁to ▁over see ▁the ▁dem obil ization ▁of ▁the ▁Imperial ▁Japanese ▁Army . ▁ ▁As ▁with ▁all ▁other ▁members ▁of ▁the ▁former ▁Japanese ▁government , ▁Sh im om ura ▁was ▁briefly ▁taken ▁into ▁cust ody ▁by ▁the ▁American ▁occupation ▁authorities ▁from ▁ 1 9 4 6 ▁to ▁ 1 9 4 7 , ▁but ▁was ▁released ▁without ▁charges ▁file d . ▁ ▁In ▁ 1 9 5 5 , ▁Sh im om ura ▁was ▁asked ▁to ▁help ▁create ▁the ▁post - war ▁Japan ▁Def ense ▁Agency . ▁In ▁June ▁ 1 9 5 9 , ▁he ▁was ▁elected ▁to ▁the ▁House ▁of ▁Council ors ▁in ▁the ▁post - war ▁Diet ▁of ▁Japan ▁for ▁a ▁single ▁term ▁with ▁the ▁support ▁of ▁the ▁Liberal - D em ocr atic ▁Party . ▁He ▁ran ▁again ▁in ▁the ▁[[ 1 9 6 5 ▁Japanese ▁House ▁of ▁Coun c ill ors ▁election || , ▁but ▁was ▁defeated . ▁Sh im om ura ▁died ▁in ▁a ▁traffic ▁accident ▁on ▁ 2 5 ▁March ▁ 1 9 6 8 . ▁ ▁Dec or ations ▁▁