For the first time, an official map from the late Edo Period ... is marked as Matsushima and present-day Ullung-do island in South Korea as Takeshima. It also shows a sea route linking Matsumae ...
The aerial maps both show the two nations’ “air defense identification zone (ADIZ)” boundary between Takeshima and Japan’s Oki island group, but Funasugi noted that has nothing to do with ...