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The Scattered Islands in the Indian Ocean ( or ') consist of four small
coral island A coral island is a type of island formed from coral detritus and associated organic material. It occurs in tropical and sub-tropical areas, typically as part of a coral reef which has grown to cover a far larger area under the sea. The term low ...
s, an
atoll An atoll () is a ring-shaped island, including a coral rim that encircles a lagoon. There may be coral islands or cays on the rim. Atolls are located in warm tropical or subtropical parts of the oceans and seas where corals can develop. Most ...
, as well as a
reef A reef is a ridge or shoal of rock, coral, or similar relatively stable material lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic component, abiotic (non-living) processes such as deposition (geol ...
in the
Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or approximately 20% of the water area of Earth#Surface, Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia (continent), ...
; they constitute the fifth district of the
French Southern and Antarctic Lands The French Southern and Antarctic Lands (, TAAF) is an overseas territory ( or ) of France. It consists of: * Adélie Land (), the French claim on the continent of Antarctica. * Crozet Islands (), a group in the southern Indian Ocean, south ...
, though sovereignty over some or all of the islands is contested by the
Comoros The Comoros, officially the Union of the Comoros, is an archipelagic country made up of three islands in Southeastern Africa, located at the northern end of the Mozambique Channel in the Indian Ocean. Its capital and largest city is Moroni, ...
,
Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...
, and
Mauritius Mauritius, officially the Republic of Mauritius, is an island country in the Indian Ocean, about off the southeastern coast of East Africa, east of Madagascar. It includes the main island (also called Mauritius), as well as Rodrigues, Ag ...
. None of the islands have ever had a permanent population, though the
French armed forces The French Armed Forces (, ) are the military forces of France. They consist of four military branches – the Army, the Navy, the Air and Space Force, and the National Gendarmerie. The National Guard serves as the French Armed Forces' milita ...
maintain small troop contingents on some of the islands. Scattered Islands in the Indian Ocean around Madagascar, mainly in the Mozambique Channel, the scattered islands, "confetti of the French colonial empire," are of strategic importance due to the extent of their economic area of interest. France asserts its presence there by basing small detachments of military personnel. . Two of the islands—
Europa Island Europa Island (, ), in Malagasy Nosy Ampela is a low-lying tropical atoll in the Mozambique Channel, about a third of the way from southern Madagascar to southern Mozambique. The island had never been inhabited until 1820, when the French fa ...
and
Juan de Nova Island Juan de Nova Island (, ), Malagasy: ''Nosy Kely'') is a French-controlled tropical island in the narrowest part of the Mozambique Channel, about one-third of the way between Madagascar and Mozambique. It is a low, flat island, in size. Admi ...
—and the
Bassas da India Bassas da India (; ) is an uninhabited, roughly circular atoll located in the southern Mozambique Channel, about halfway between Mozambique and Madagascar (about further east) and around northwest of Europa Island. It is administered by F ...
atoll lie in the
Mozambique Channel The Mozambique Channel (, , ) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique. The channel is about long and across at its narrowest point, and reaches a depth of about off the coa ...
west of Madagascar, while a third island,
Tromelin Island Tromelin Island (; , ), once called the Isle of Sand, is a low, flat island in the Indian Ocean about north of Réunion and about east of Madagascar. Both France and Mauritius claim sovereignty over the islands, and France includes it in t ...
, lies about east of Madagascar and the
Glorioso Islands The Glorieuses or Glorioso Islands ( or officially also ) are a group of islands and rocks totaling . They are controlled by France as part of the Scattered Islands in the Indian Ocean in the French Southern and Antarctic Lands, a French overse ...
lies about northwest of Madagascar. Also in the Mozambique Channel is
Banc du Geyser Banc du Geyser (also Banc du Geysir) is a mostly submerged reef in the Mozambique Channel's northeastern part, northeast from Mayotte, southwest of the Glorioso Islands and off the northwestern coast of Madagascar. Description The Banc is a d ...
, a mostly submerged reef considered a part of the Glorioso Islands by
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
and the Comoros. The islands have been classified as
nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, funga, or features of geologic ...
s. Except for Bassas da India, they all support
meteorological stations Meteorology is the scientific study of the Earth's atmosphere and short-term atmospheric phenomena (i.e. weather), with a focus on weather forecasting. It has applications in the military, aviation, energy production, transport, agriculture, ...
: those on the Glorioso Islands, Juan de Nova, and Europa Island are automated. The station on Tromelin Island, in particular, provides warning of
cyclone In meteorology, a cyclone () is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an ant ...
s threatening Madagascar, Mauritius, or
Réunion Réunion (; ; ; known as before 1848) is an island in the Indian Ocean that is an overseas departments and regions of France, overseas department and region of France. Part of the Mascarene Islands, it is located approximately east of the isl ...
. Each of the islands, except Banc du Geyser and Bassas da India, has an airstrip of more than . The Scattered Islands in the Indian Ocean are partially claimed by the Comoros, Madagascar, and Mauritius. The Malagasy and Mauritian claims, however, are significantly later than their access to independence. However, the agreement reached in October 2024 on the restitution to Mauritius of the Chagos Islands by Great Britain, in the heart of the Indian Ocean, notably home to the American base of Diego Garcia, has relaunched the debate in Madagascar.


Overview


Individual islands

*
Bassas da India Bassas da India (; ) is an uninhabited, roughly circular atoll located in the southern Mozambique Channel, about halfway between Mozambique and Madagascar (about further east) and around northwest of Europa Island. It is administered by F ...
**Ten unnamed rock islets *
Europa Island Europa Island (, ), in Malagasy Nosy Ampela is a low-lying tropical atoll in the Mozambique Channel, about a third of the way from southern Madagascar to southern Mozambique. The island had never been inhabited until 1820, when the French fa ...
**ÃŽle Europa **Eight unnamed rock islets *
Glorioso Islands The Glorieuses or Glorioso Islands ( or officially also ) are a group of islands and rocks totaling . They are controlled by France as part of the Scattered Islands in the Indian Ocean in the French Southern and Antarctic Lands, a French overse ...
**
Banc du Geyser Banc du Geyser (also Banc du Geysir) is a mostly submerged reef in the Mozambique Channel's northeastern part, northeast from Mayotte, southwest of the Glorioso Islands and off the northwestern coast of Madagascar. Description The Banc is a d ...
**Grande Glorieuse **ÃŽle du Lys **South Rock **Verte Rocks (three islets) **Wreck Rock **Three unnamed islets *
Juan de Nova Island Juan de Nova Island (, ), Malagasy: ''Nosy Kely'') is a French-controlled tropical island in the narrowest part of the Mozambique Channel, about one-third of the way between Madagascar and Mozambique. It is a low, flat island, in size. Admi ...
*
Tromelin Island Tromelin Island (; , ), once called the Isle of Sand, is a low, flat island in the Indian Ocean about north of Réunion and about east of Madagascar. Both France and Mauritius claim sovereignty over the islands, and France includes it in t ...


Administration

Since January 3, 2005, the Scattered Islands have been administered on behalf of the French state by the senior administrator of the
French Southern and Antarctic Lands The French Southern and Antarctic Lands (, TAAF) is an overseas territory ( or ) of France. It consists of: * Adélie Land (), the French claim on the continent of Antarctica. * Crozet Islands (), a group in the southern Indian Ocean, south ...
, based in
Réunion Réunion (; ; ; known as before 1848) is an island in the Indian Ocean that is an overseas departments and regions of France, overseas department and region of France. Part of the Mascarene Islands, it is located approximately east of the isl ...
. The Scattered Islands had previously been under the administration of the
prefect Prefect (from the Latin ''praefectus'', substantive adjectival form of ''praeficere'': "put in front", meaning in charge) is a magisterial title of varying definition, but essentially refers to the leader of an administrative area. A prefect' ...
of Réunion since the independence of Madagascar in 1960. France maintains a military garrison of around 14 troops on each of the islands in the
Mozambique Channel The Mozambique Channel (, , ) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique. The channel is about long and across at its narrowest point, and reaches a depth of about off the coa ...
that are claimed by Madagascar. The troops are supported by French naval vessels based in Réunion conducting patrol missions and re-supply operations about four times per year. The Glorioso Islands are also claimed by the Comoros, while Mauritius claims Tromelin Island. France has an
exclusive economic zone An exclusive economic zone (EEZ), as prescribed by the 1982 United Nations Convention on the Law of the Sea, is an area of the sea in which a sovereign state has exclusive rights regarding the exploration and use of marine natural resource, reso ...
(EEZ) of 200 nautical miles around each of the small islands in the Scattered Islands, which together with the EEZ claims for the islands of
Mayotte Mayotte ( ; , ; , ; , ), officially the Department of Mayotte (), is an Overseas France, overseas Overseas departments and regions of France, department and region and single territorial collectivity of France. It is one of the Overseas departm ...
and Réunion totals more than one million square kilometres in the western Indian Ocean. There is considerable overlap of the EEZ with the neighbouring states.


Sovereignty dispute

Mauritius Mauritius, officially the Republic of Mauritius, is an island country in the Indian Ocean, about off the southeastern coast of East Africa, east of Madagascar. It includes the main island (also called Mauritius), as well as Rodrigues, Ag ...
,
Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...
, and the
Comoros The Comoros, officially the Union of the Comoros, is an archipelagic country made up of three islands in Southeastern Africa, located at the northern end of the Mozambique Channel in the Indian Ocean. Its capital and largest city is Moroni, ...
dispute France's sovereignty over these islands. Mauritius claims
Tromelin Island Tromelin Island (; , ), once called the Isle of Sand, is a low, flat island in the Indian Ocean about north of Réunion and about east of Madagascar. Both France and Mauritius claim sovereignty over the islands, and France includes it in t ...
and states that the island, discovered by France in 1722, was not ceded by the Treaty of Paris in 1814. Madagascar claims sovereignty over the
Glorioso Islands The Glorieuses or Glorioso Islands ( or officially also ) are a group of islands and rocks totaling . They are controlled by France as part of the Scattered Islands in the Indian Ocean in the French Southern and Antarctic Lands, a French overse ...
(including
Banc du Geyser Banc du Geyser (also Banc du Geysir) is a mostly submerged reef in the Mozambique Channel's northeastern part, northeast from Mayotte, southwest of the Glorioso Islands and off the northwestern coast of Madagascar. Description The Banc is a d ...
), though the island group was never a part of the
Malagasy Protectorate The Malagasy Protectorate (, ) was a French protectorate in what is now Madagascar. Through the protectorate, France attempted to control the foreign affairs of the Kingdom of Imerina through its representative at Antananarivo. France declared ...
, having been a part of the Colony of Mayotte and dependencies, then a part of the
French Comoros The history of the Comoros extends back to about 800–1000 AD when the archipelago was first inhabited. The Comoros have been inhabited by various groups and sultanates throughout this time. France colonised the islands in the 19th century, a ...
that had become a separately administered colony from Madagascar in 1946. The Comoros also claims the Glorioso Islands (including Banc du Geyser), as a part of the disputed
French region France is divided into eighteen administrative regions (, singular ), of which thirteen are located in metropolitan France (in Europe), while the other five are overseas regions (not to be confused with the overseas collectivities, which hav ...
of Mayotte. Furthermore, Madagascar has also claimed
Bassas da India Bassas da India (; ) is an uninhabited, roughly circular atoll located in the southern Mozambique Channel, about halfway between Mozambique and Madagascar (about further east) and around northwest of Europa Island. It is administered by F ...
,
Europa Island Europa Island (, ), in Malagasy Nosy Ampela is a low-lying tropical atoll in the Mozambique Channel, about a third of the way from southern Madagascar to southern Mozambique. The island had never been inhabited until 1820, when the French fa ...
, and
Juan de Nova Island Juan de Nova Island (, ), Malagasy: ''Nosy Kely'') is a French-controlled tropical island in the narrowest part of the Mozambique Channel, about one-third of the way between Madagascar and Mozambique. It is a low, flat island, in size. Admi ...
since 1972, and a 1979 United Nations resolution (without binding force) demanded the cession of these islands to Madagascar.
Seychelles Seychelles (, ; ), officially the Republic of Seychelles (; Seychellois Creole: ), is an island country and archipelagic state consisting of 155 islands (as per the Constitution) in the Indian Ocean. Its capital and largest city, Victoria, ...
claimed a part of the Scattered Islands too before the signing of the France–Seychelles Maritime Boundary Agreement. A negotiation session between France and Madagascar took place in November 2020. In April 2025, France and Madagascar announced that they would meet in June 2025 to find a peaceful solution to the dispute. President Emmanuel Macron favors a form of co-management with Madagascar, rather than restitution.


See also

*
Administrative divisions of France The administrative divisions of France are concerned with the institutional and territorial organization of French territory. These territories are located in many parts of the world. There are many administrative divisions, which may have ...
*
French Southern and Antarctic Lands The French Southern and Antarctic Lands (, TAAF) is an overseas territory ( or ) of France. It consists of: * Adélie Land (), the French claim on the continent of Antarctica. * Crozet Islands (), a group in the southern Indian Ocean, south ...
*
List of territorial disputes Territorial disputes have occurred throughout history, over lands around the world. Bold indicates one claimant's full control; ''italics'' indicates one or more claimants' partial control. Ongoing disputes between UN member/observer states ...
*
Overseas France Overseas France (, also ) consists of 13 France, French territories outside Europe, mostly the remnants of the French colonial empire that remained a part of the French state under various statuses after decolonisation. Most are part of the E ...


References


External links

* {{Authority control 2007 establishments in Africa 2007 establishments in France Dependent territories in Africa Disputed islands French Southern and Antarctic Lands
• In typography, a bullet or bullet point, , is a typographical symbol or glyph used to introduce items in a list. For example: * Monica * Erica * Rita * Tina * Sandra * Mary * Jessica The bullet symbol may take any of a variety of shapes, s ...
Island countries of the Indian Ocean Islands of Africa Islands of Madagascar Mozambique Channel Protected areas of Africa Protected areas of Overseas France Southeast African countries States and territories established in 2007 Uninhabited islands of France