 Commodore Matthew C. Perry neboka rake rainzi nevaJapan Zvikepe Zvitsvuku, vakapinda muchikepe paEdo yava kunzi Tokyo muna July 1853. Perry akatsvaka kuzarura Japan kutengeserana, uye akanyevera vaJapan nezvemigumisiro yechiuto kana vasina kubvumirana. Munguva yenhamo yakaunzwa nekuuya kwaPerry, Tokugawa shogunate yakatora, kekutanga mumakore angangoita mazana maviri nemakumi mashanu, danho risingawanzoitika rekubvunza neImperial Court, uye vakuru vakuru vaMambo Kōmei vakapa zano rekuti vaifunga kuti maAmerican aifanira kubvumidzwa kutengeserana uye vakakumbira kuti vaziviswe pachine nguva nezve chero matanho anozotorwa pakudzoka kwaPerry. Ichinzwa iri panhamo mukurwisana namasimba okuMadokero, hurumende yeJapan yakabvumira kutengeserana ndokuzviisa pasi peZvibvumirano Zvisina Kuenzana, ichirega chiremera chemitero uye maruramiro okutonga vatorwa mumatare ayo amene. Kuda kweshogunate kubvunza neDare reMambo kwakanga kuri kwenguva pfupi: muna 1858, shoko resunganoyakasvika netsamba yaitaura kuti nemhaka yokushomeka kwenguva, kwakanga kusingabviri kubvunza. Mambo Kōmei akatsamwa kwazvo zvokuti akatyisidzira kuti aizosiya chigaro, kunyange zvazvo kunyange chiito ichi chaizoda kubvumirwa naShogun. 