 Pakupera kweNagasaki Naval Training Center muna 1859, akaendeswa kuTsukiji Naval Training Center itsva muEdo, naKatsu Kaishu somumwe wevashandi vake. Muna 1861, Yatabori Ko ndiye aiva kaputeni wayo uye muna 1862 akapinda mubasa rokuenda kuzvitsuwa zveOgasawara kuti asimbise kuti Japan ndiyo yaitonga zvitsuwa izvi. Muna 1863, akabatanidzwa muFirst Chōshū expedition, uye kunyadzisa zvikuru shogunate, yakatorwa kwenguva pfupi nemauto eChoshu. Muna 1864, akabatanidzwa mukudzvinyirira kwe pro-sonnō jōi mauto muMito Rebellion. 