Tsushima, Japan (Google Maps ⧉, OpenStreetMap ⧉)

"in 1274, he sent a fleet of 300 vessels with 15,000 men against Japan. This was defeated near the Island of Tsushima..."

"JAPANESE WAR. “Hung Ts’a-k’iu, who set out overland viâ Corea and Tsushima in 1281, is much more likely than Fan Wên-hu to be Von-sain-chin …"