Ryukyu Islands - 1609-1945 & since 1972 [1] Bonin Islands - 1862-1945 & since 1968 Kuril Islands - 1875-1945 Volcano Islands - 1891-1945 & since 1968 Taiwan - 1895-1945 Minami-Tori-shima - 1898-1945 & since 1968 South Karafuto (Sakhalin) - 1905-1945 Kwantung Leased Territory - 1905-1945 Korea - 1910-1945 South Pacific Mandate - 1914-1945 Shandong - formerly of German Empire - 1914-1922 Okinotorishima - 1931-1945 & since 1968