The term “home islands” was used at the end of World War II to define the area where Japanese sovereignty and constitutional rule of its emperor would be restricted.[citation needed] The term is also commonly used today to distinguish the archipelago from Japan's colonies and other territories.[6]
The archipelago consists of 6,852 islands[7] (here defined as land more than 100 m in circumference), of which 430 are inhabited.[8] The five main islands, from north to south, are Hokkaido, Honshu, Shikoku, Kyushu, and Okinawa.[5] Honshu is the largest and referred to as the Japanese mainland.[9]
The topography is divided as:
Hokkaido, Honshu, and Shikoku and its surrounding islands;
Kyushu and the Ryukyu arc , which is composed of the Ryukyu Islands and other surrounding islands;
^"Water Supply in Japan". Ministry of Health, Labour and Welfare. Archived from the original(website) on January 26, 2018. Retrieved 26 September 2018.
^"日本の領海等概念図". 海上保安庁海洋情報部. Archived from the original on August 12, 2018. Retrieved 12 August 2018.
^ ab離島とは(島の基礎知識) [what is a remote island?]. MLIT (Ministry of Land, Infrastructure, Transport and Tourism) (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. 22 August 2015. Archived from the original(website) on 2007-11-13. Retrieved 9 August 2019. MILT classification 6,852 islands(main islands: 5 islands, remote islands: 6,847 islands)
^Milton W. Meyer, Japan: A Concise History, 4th ed. Lanham, Maryland: Rowman & Littlefield, 2012, ISBN9780742541184, p. 2.
^"離島とは(島の基礎知識)". Ministry of Land, Infrastructure, Transport and Tourism. Archived from the original(website) on November 13, 2007. Retrieved 3 October 2018.