While surveying the Western coast of Korea, the Japanese put ashore a party on Ganghwa Island to request water and provisions. When the shore batteries of the Korean forts  fired on the Un'yō, the Japanese response was swift and severe. After bombarding the Korean fortifications, the Japanese landed a shore party that torched several houses on the island and engaged Korean troops.
During an expedition along Korea's western coast, the Japanese sent a group ashore on Ganghwa Island to request refreshments and supplies. When the Korean fortifications' coastal guns fired at the Un'yō, the Japanese response was swift and severe. Following a barrage of the Korean defenses, the Japanese landed a shore party that burned several houses on the island and engaged with Korean forces.