The Unyo’s Survey of Korean Coasts and the Korea-Japanese Treaty of Amity
Years ending in 5 often mark anniversaries of significant historical events. Examples include
the 1875 Unyo Incident, the 1885 Tianjin Treaty, the 1895 Treaty of Shimonoseki, the 1905
Portsmouth Treaty, and the Eulsa Treaty. Among these events, this article addresses the Unyo
Incident. the armed provocation by the Japanese warship Unyo against the Korean military in
Ganghwa Island, and examines the background of the subsequent conclusion of the Korea-
Japanese Treaty of Amity.