Deokjinjin Fortress - stone gate, Ganghwa Island, Incheon, South Korea - Stockfoto

Ganghwa Island, Incheon, South Korea: Deokjinjin Fortress - Deokjinjin was the key strategic point of the outer castle wall used for defending the Ganghwa Straits during the Goryeo dynasty (918-1392). Deokjinjin fort was the scene of fierce battles that took place during the French invasion in 1866 and the American invasion in 187