Nissen (日鮮) is a proposed restructuring of the Japanese Empire, and an occassionally-used alternate name for the same. Under this proposal, the Empire would be a federation of two entities, the Empire of Japan and the Empire of Corea, in personal union. Japan would consist of modern-day Insular Japan. The concept is currently championed primarily by the Democratic Party and the Confederationist Party. The Corean Nationalist Party objects to it, as they would prefer a fully independent Corea, while most of the other parties either prefer to retain the status quo, or prefer even greater centralization.