After that, the Ganghwa Island incident of 1876 led to the conclusion of the Japanese-Korean Treaty of Amity (Treaty of Ganghwa), and in this treaty, Japan recognized the Joseon Dynasty as an independent country and made the Joseon Dynasty open its country to the world.
その後、1876年に起きた江華島事件を契機として日朝修好条規（江華島条約）を締結し、朝鮮を自主国として認め、開国させるに至る。