Gwangseongbo Fortress

Gwangseongbo Fortress is one of the 12 Jinbo (coastal defense units) of Ganghwa, established in 1658. It oversaw Hwadodondae, Odudondae, Gwangseongdondae, and Odujeong Battery built in 1874. In 1745, the fortress was rebuilt and a gate was constructed, named 'Anhaeru (按海樓)'.

Gwangseongbo Fortress was the site of the fiercest battle during the 1871 Shinmiyangyo (U.S. expedition to Korea). After passing through Chojijin and Deokjinjin, the U.S. forces reached Gwangseongbo and bombarded it before landing. General Eo Jae-yeon (魚在淵), who had previously served at Gwangseongbo during the Byeonginyangyo (French campaign against Korea), hid his troops in a safe place to avoid the bombardment and fought against the landing U.S. forces. The Joseon troops fought bravely without retreating but were defeated due to inferior weaponry.