List of territories acquired by the Empire of Japan

This is a list of regions occupied or annexed by the Empire of Japan until 1945, the year of the end of World War II in Asia, after the surrender of Japan. Control over all territories except most of the Japanese mainland (Hokkaido, Honshu, Kyushu, Shikoku, and some 6,000 small surrounding islands) was renounced by Japan in the unconditional surrender after World War II and the Treaty of San Francisco. A number of territories occupied by the United States after 1945 were returned to Japan, but there are still a number of disputed territories between Japan and Russia (the Kuril Islands dispute), South Korea and North Korea (the Liancourt Rocks dispute), the People's Republic of China and Taiwan (the Senkaku Islands dispute). Hokkaido — 1869–1918 Chishima Islands – 1875–1918 Ryukyu Islands – 1879–1918 Nanpō Islands – 1891–1918 Taiwan and the Penghu Islands – 1895–1945 Minamitorishima – 1898–1918 Karafuto – 1905–1943 Kantō – 1905–1945 Chōsen – 1910–1945 Kiautschou Bay Leased Territory – 1914–1922 Nan’yō 1919–1945 All ports and major towns in the Primorsky Krai and Siberia regions of Russia east of the city of Chita, from 1918 until gradually withdrawing in 1922. North Sakhalin was occupied by Japan 1920-1925. Disclaimer: Not all areas were considered part of Imperial Japan but rather part of puppet states & sphere of influence, allies, included separately for demographic purposes. Sources: POPULSTAT Asia Oceania Other occupied World War 2 islands: Andaman Islands (India) – March 29, 1942 – September 9, 1945 Christmas Island (Australia) – March 1942 – October 1945 Kohima and Manipur (India) Dornod (Khalkhin Gol, Mongolia) Midway Atoll (United States) Air raids Pearl Harbor (Hawaii, United States) Colombo and Trincomalee (Sri Lanka) Calcutta (India) Chittagong (Bangladesh) Air raids on Australia, including: Broome (Western Australia, Australia) Darwin (Northern Territory, Australia) Townsville (Queensland, Australia) Dutch Harbor (Alaska, United States) Lookout Air Raids (Oregon, United States) Naval bombardment by s