Chagos Archipelago

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Map of the Chagos ArchipelagoAtolls with land area shown in green.
Map of the Chagos Archipelago
Atolls with land area shown in green.

The Chagos Archipelago is a group of seven atolls with more than 60 individual tropical islands in the Indian Ocean, that lies about 500 km (300 miles) due south of the Maldives in the Indian Ocean, and 1600 km (1000 miles) southwest of India, half way between Tanzania and Java.

Officially part of the British Indian Ocean Territory they were home to the Ilois for more than a century until their forced expulsion in the 1960s by the United Kingdom and United States.

[edit] Geography

The entire land area of the islands is a mere 63.17 km², with the largest island, Diego Garcia, having an area of 27.20 km². The total area, including lagoons within atolls, however, is about 15,000 km², of which 13,000 km² are accounted by the Great Chagos Bank, one of the largest atoll structures of the world. The shelf area is 20,607 km², and the Exclusive Economic Zone, which borders to the corresponding zone of the Maldive Islands in the north, has an area of 636,600 km² (including territorial waters). The archipelago consists of seven atoll formations of all sizes which have islands or cays permanently over water, including the largest atoll structure of the world, the Great Chagos bank with a total area (mostly water) of 13,000 km².

  1. Diego Garcia (including Diego Garcia and three smaller islets at the Northern end)
  2. Egmont Islands or Six Iles (7 islets)
  3. Peros Banhos (27 islets)
  4. Salomon Islands (11 islets)
  5. Great Chagos Bank (7 islets)
  6. Blenheim Reef (3 islets)
  7. Speakers Bank (a number of drying sand cays)

The largest individual islands are Diego García (27.20 km²), Eagle (Great Chagos Bank, 2.45 km²), Ile Pierre (Peros Banhos, 1.50 km²), Eastern Egmont (Egmont Islands, 1.50 km²), Ile de Coin (Peros Banhos, 1.28 km²) and Ile Boddam (Salomon Islands, 1.08 km²).

The number of atolls in the Chagos Islands is given as four or five in most sources, plus two island groups and two single islands, mainly because it is not recognized that the Great Chagos Bank is a huge atoll structure (including those two island groups and two single islands), and because it is not recognized that Blenheim Reef and Speakers Bank have islets or cays above or just reaching the high water mark.

In addition to the seven atolls with dry land reaching at least the high water mark, there are about seven to nine banks, most of which can be considered permanently submerged atoll structures.

  Atoll/Reef/Bank
(alternate name)
type land
area
(km²)
total
area
(km²)
Location
1 Diego Garcia atoll 30 170 7°19′S, 72°25′E
2 Salomon Islands atoll 5 30 05°22′S, 72°13′E
3 Peros Banhos atoll 13 380 05°20′S, 71°51′E
4 Egmont Islands atoll 4 39 06°39′S, 71°23′E
5a Danger Island parts of
mega-atoll
Great Chagos
Bank
0.66 13000 06°23′S, 71°16′E
5b Eagle Islands 2.63 06°12′S, 71°19′E
5c Three Brothers (Trois Freres) 0.37 06°09′S, 71°31′E
5d Nelson Island 0.81 05°41′S, 72°02′E
6 Blenheim Reef (Baxio Predassa) unvegetated atoll 0.3 30 05°12′S, 72°28′E
7 Speakers Bank unvegetated atoll >0 800 04°55′S, 72°20′E
8 Colvocoresses Reef submerged atoll - . 04°54′S, 72°37′E
9 Victory Bank submerged atoll - 19 05°32′S, 72°14′E
10 Benares Shoals submerged reef - 2 05°15′S, 71°40′E
11 Cauvin Bank submerged atoll - 12 06°46′S, 72°22′E
12 Ganges Bank submerged atoll - . 07°23′S, 70°58′E
13 Wight Bank submerged atoll - . 07°25′S, 71°31′E
14 Pitt Bank submerged atoll - 1100 07°04′S, 72°31′E
15 Centurion Bank submerged atoll - . 07°39′S, 70°50′E
16 Owen Bank submerged bank - . 06°48′S, 70°14′E
  Chagos Archipelago Archipelago 60 15000

[edit] Resources

The main natural resources of the area are sugarcane, coconuts, and fish. However, these are only planned to be re-established as the main agriculture of the islands once the former islanders return.

The licensing of commercial fishing provides an annual income of about one million dollars for the British Indian Ocean Territory authorities.[1]

All economic activity is concentrated on the largest island of Diego Garcia, where joint UK-US defence facilities are located. Construction projects and various services needed to support the military installations are done by military and contract employees from the UK, Mauritius, the Philippines, and the US. There are no industrial or agricultural activities on the islands. When the Ilois return, they plan to reestablish sugarcane production and fishing.

[edit] Climate

Tropical marine; hot and humid but moderated by trade winds. Climate is characterised by plenty of sunshine, warm temperatures, showers and light breezes. December through February is considered the rainy season (summer monsoon); typical weather conditions include light west-northwesterly winds and warmer temperatures with more rainfall. June through September is considered the drier season (winter), characterised by moderate south-easterly winds, slightly cooler temperatures and less rainfall. The annual mean rainfall is 2600 mm (100 inches), varying from 105 mm (4 inches) during August to 350 mm (14 inches) during January.

[edit] History

The islands were discovered by Vasco da Gama in the early 16th century, then claimed in the 18th century by France as a possession of Mauritius. On 27 April 1786 the Chagos Isands and Diego Garcia were claimed for Britain. The territory was ceded to the United Kingdom by treaty in 1814 and on 31 August 1903 the Chagos Archipelago was administratively separated from the Seychelles and attached to Mauritius.

The islands were retained as part of the British Indian Ocean Territory when Mauritius gained independence. Since 1976, the archipelago has been coterminous with the British Indian Ocean Territory, but it is also claimed by Mauritius and Seychelles.[2]

The archipelago's first inhabitants arrived in the late 18th century. By the mid-20th century they numbered almost 2,000, of mixed African and South Asian descent. The entire population, known as the Ilois (French for islanders), was expelled from the islands and sent to Mauritius by the British Government between 1967 and 1971 to make way for a joint United States-United Kingdom military base on Diego Garcia.

Currently, the only habitation is the joint defence and naval support facility on Diego Garcia. Other uninhabited islands, especially in the Salomon group, are common stopping points for long-distance yachtsmen travelling from Southeast Asia to the Red Sea or the coast of Africa.

For more information on the expulsion of the islanders and the court case, please read the article on Diego Garcia.

[edit] Politics

The most high profile aspect of Chagos Island politics relates to the continued future of the former inhabitants of the islands who were evicted in the 1960s and 1970s as part of an arrangement between the United Kingdom and the United States to establish a defence establishment on the island of Diego Garcia. The islanders' plight has been well documented, including a documentary produced by investigative journalist John Pilger, entitled "Stealing a Nation", which won the British Royal Television Society Best Documentary Award in 2004.

In 2000, the English High Court ruled that a local Ordinance made by the Commissioner of the British Indian Ocean Territory exiling the islanders was unlawful, a decision which was accepted by the British Foreign Secretary Robin Cook. Subsequent to this decision, the British Government attempted to achieve the same objective through use of the royal prerogative; a strategy which was also found to be unlawful by the High Court. The UK government has launched an appeal at the Court of Appeal against this ruling.

Thus, although these court rulings make it legal for these people to return to all islands other than Diego Garcia - which is currently the only island in the group which by treaty is required by the United States for defence purposes - it seems unlikely that resettlement of the islands will commence until legal proceedings have been concluded.

If these court rulings are upheld, the long term future of the archipaelago appears uncertain. In the medium term the US lease of Diego Garcia is by treaty currently set to expire in 2016, although both Governments have the option of extending the lease for another 20 years if considered necessary.

Beyond this date, it appears from statements made by Mauritius to the United Nations Human Rights Committee that the United Kingdom has undertaken to cede the islands to Mauritius once they are no longer required by the United States.

However, this undertaking appears to have been made on the predication that the islands continue to remain uninhabited; if the Ilois are able to resume settlement the United Kingdom may decide to treat the islands in accordance with general principles of self-determination, potentially rendering the geopolitical future of the islands in the hands of its displaced people.

[edit] References

  • Pilger, John. Freedom Next Time. Bantam Press. ISBN 0593055527.  Chapter 1: Stealing a Nation pp19 - 60
  • Rao, Padma, "Der Edikt der Königin," Der Spiegel 5 December 2005, pp. 152-4.

[edit] Footnotes

[edit] See also

[edit] External links


edit Atolls of the Chagos Archipelago (British Indian Ocean Territory) Flag of the British Indian Ocean Territory
Atolls with land area: Diego García | Egmont Islands | Peros Banhos | Salomon Islands | Great Chagos Bank | Blenheim Reef | Speakers Bank
Totally submerged atolls: Colvocoresses Reef | Benares Shoals | Victory Bank | Cauvin Bank | Pitt Bank | Ganges Bank | Wight Bank | Centurion Bank | Owen Bank