The British Indian Ocean Territory is a territory of the United Nation that has six atolls and over 1,000 individual islands. It is also known as Chagos Islands and is located between Africa and Indonesia in the Indian Ocean. The capital of this territory is Diego Garcia which has the land area of about 23 square miles and is also the largest island in the British Indian Ocean Territory.
To read more about the British Indian Ocean Territory, follow this link : http://en.wikipedia.org/wiki/British_Indian_Ocean_Territory