 Ramba uchinyora ndima iyi - Sezvo simba rakabva kuEdo bakufu richienda kuDare reMambo, Yoshikatsu akapedza nguva yake yakawanda muKyoto. Muchirimo cha1863, Emperor akaburitsa Order yekudzinga mabarbarians 夷実行の命, jōi jikkō no chokumei, uye pazuva rekupedzisira regore akaumba musangano wevanopa mazano Sanyo Kaigi 参預会議, boka reva daimyo vane simba kuti vashande seboka rake remauto. Yoshikatsu akakokwa kuti apinde, asi akaramba. Mushure mechiitiko cheKinmon muzhizha, umo samurai kubva kuChōshū Domain akaedza kupandukira Tokugawa Bakufu, Yoshitaka akashanda semutungamiriri wemauto panguva yekurangwa kwekutanga kweChōshū, munaGunyana-Mbudzi 1864, naSaigō Takamori semutevedzeri wemutungamiri. Mushandirapamwe wacho wakaonekwa somubudiriro, asi, apo Chōshū zvakare akashora chiremera cheBakufu, Yoshikatsu akaramba kutora rutivi muKushanyira kweChipiri kweChōshū, iyo yakaguma nekurasikirwa nechinzvimbo cheBakufu uye mubatanidzwa wakavanzika pakati peSatsuma neChōshū domains, mubatanidzwa uyo wakakurumidza kupidigura shogunate. 