Dokdo, which is visible from Ulleungdo on a clear day, has been perceived as a dependency of Ulleungdo. It has long been a Korean territory where the inhabitants of Ulleungdo have been engaged in fishing activities for a long time.

In addition, a wide range of historical records published in Korea and Japan support the fact that Dokdo can be sighted from, and has been recognized as a dependency of Ulleungdo.

Dokdo, dependency of Ulleungdo