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http://www.ems.psu.edu/~williams/states/io.htm
Brief summary of facts about this territory within the Chagos Archipelago.

http://www.msc.navy.mil/mpstwo/garcia.htm
Facts about this British possession from the US Navy.

http://www.historyofnations.net/asia/biot.html
Features a history of the British Indian Ocean Territory including the island of Diego Garcia.