五島列島
Sasebo also contained the Sasebo Naval Arsenal, specializing mostly in destroyers and smaller warships; and its anchorage was one of the largest in Japan. The District encompassed anchorages at Imari and Hirado ports as well as the designated third echelon naval ports of Takeshiki (Tsushima), Kagoshima, Kuji (Amami-Ōshima), and Wakamatsu (Gotō Islands)