 Nyorai kupfuurira kweiyi ndima - Muna 1919, Hagiwara neJRC vakabatsira Hondo yeJapan muSiberia Intervention panguva yeRussian Revolution. Pamberi peRussian Revolution, vaPoland, avo vakanga vaendeswa kuSiberia kana kuti vakatsvaka utiziro ikoko mukati meHondo yeNyika I, vakaverengwa vanhu vanenge mamiriyoni 20. Mukati mekupindira, chinetso chavana nherera vokuPoland chakava pachena kuna Hagiwara. Anna Bielkiewicz naJozef Jakóbkiewicz, vokuVladivostok vakanga vaumba Polish Rescue Committee, vakatanga kuunganidza nherera dzomunharaunda yacho yose uye vakakumbira nyika dzokuMadokero kuti dzibatsirwe. Pavakanga vasina kubudirira kuMadokero, Bielkiewicz naJakóbkiewicz vakatumira zvikumbiro kuJapan nokumhuri yePolish America. Achimiririra JRC, Hagiwara akakumbira kuti Hurumende yeJapan ibatsire nebasa rokubatsira nherera uye akawana mvumo yehurumende mukati memazuva gumi nemanomwe. Muna 1920, Hagiwara, pamwe chete naYao Yamamoto naUme Yuasa vakapiwa Florence Nightingale Medal mukuratidzwa kwayo kwekutanga nokuda kwehutano hwavo hwekuyamwisa. 