Causing the Ganghwa Island Incident in 1876, Japan demanded Korea to open the country by gunboat diplomacy, and compelled it to allow Japanese diplomatic envoys to stay in Seoul by concluding the Treaty of Ganghwa in the next year.
日本は1876年に江華島事件を起こし、砲艦外交によって朝鮮に開国を迫り、翌年日朝修好条規を締結して日本外交使節のソウル駐在を認めさせた。