Bonin Islands
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- Japanese:
- Ogasawara-guntō
Bonin Islands, some 30 volcanic islands and islets in the central Pacific Ocean, about 500 miles (800 km) southeast of Japan. They can be divided into three main groups: Chichijima (Beechey) Group: Ani and Chichi islands; Mukojima (Parry) Group: Muko Island; and Hahajima (Baily) Group: Haha Island. The highest point (1,500 feet [450 metres]) is on Haha Island. A part of Tokyo metropolis (to) before World War II, they were afterward placed under U.S. military control until returned to Japan in 1968. They are now under a common administration with Minamitori (Marcus) Island and the Volcano Islands (Kazan-rettō). The largest island, Chichi (9.5 square miles [25 square km]), has the best harbour, Futami Anchorage (Port Lloyd Harbour).
The islands command a strategic position astride the Pacific approaches to East Asia. They were discovered by the Spanish navigator Ruy López de Villalobos in 1543 and were vaguely claimed by the United States (1823) and Britain (1825), but they were formally annexed by Japan in 1876. Only a fraction of their total land area—28 square miles (73 square km)—is arable, the remainder being hilly and forested. Valuable stands of timber include cedar, rosewood, ironwood, boxwood, sandalwood, and white oak.