Spratly Islands

Background

The Spratly Islands are comprised of over 100 minor islands or reefs, which are encircled by abundant fishing resources and potentially contain gas and oil reserves. The entirety of these islands is claimed by China, Taiwan, and Vietnam, while Malaysia and the Philippines assert claims over specific portions. Approximately 70 contested islets and reefs within the Spratly Islands are currently occupied by China, Malaysia, the Philippines, Taiwan, and Vietnam. Since 1985, Brunei has asserted a claim over a continental shelf that intersects with a southern reef; however, it has not formally claimed the reef itself. Brunei also claims an exclusive economic zone in this region.

Area

Climate

tropical

Terrain

small, level landforms, islets, cays, and reefs

Land use

Location

Southeast Asia, a collective of reefs and islands located in the South China Sea, roughly two-thirds of the distance from southern Vietnam to the southern Philippines

Coastline

926 km

Elevation

Map references

Southeast Asia

Land boundaries

Natural hazards

typhoons; numerous reefs and shallow waters present significant navigational dangers

Geography - note

strategically positioned close to several major shipping routes in the central South China Sea; features many small islands, atolls, shoals, and coral reefs

Natural resources

fish, guano, uncertain oil and natural gas reserves

Area - comparative

the land area is approximately seven times larger than the National Mall in Washington, D.C.

Geographic coordinates

8 38 N, 111 55 E

Population

Climate

tropical

Land use

Environmental issues

damage to reefs resulting from China's utilization of dredged sand and coral for the construction of artificial islands; unlawful fishing methods 

Country name

Military - note

Approximately 70 contested islets and reefs within the Spratly Islands are claimed by China, Malaysia, the Philippines, Taiwan, and Vietnam.

China: holds seven outposts (Fiery Cross, Mischief, Subi, Cuarteron, Gavin, Hughes, and Johnson reefs); the facilities at Fiery Cross, Mischief, and Subi feature air bases equipped with helipads and aircraft hangars, naval port capabilities, surveillance radar systems, air defense and anti-ship missile installations, and additional military infrastructure, including communication systems, barracks, maintenance facilities, as well as ammunition and fuel storage.

Malaysia: occupies five outposts located in the southern region of the archipelago, nearest to the Malaysian state of Sabah (Ardasier Reef, Eric Reef, Mariveles Reef, Shallow Reef, and Investigator Shoal); all these outposts are equipped with helicopter landing pads, and Shallow Reef also contains an airstrip.

Philippines: administers nine features (Commodore Reef, Second Thomas Shoal, Flat Island, Loaita Cay, Loaita Island, Nanshan Island, Northeast Cay, Thitu Island, and West York Island); Thitu Island includes an airstrip and a coast guard facility.

Taiwan: operates a coast guard post with an airstrip on Itu Aba Island.

Vietnam: occupies roughly 50 outposts along with about 14 platforms referred to as “economic, scientific, and technological service stations” (Dịch vụ-Khoa) situated on underwater banks to the southeast, which Vietnam does not recognize as part of the disputed island group, although China and Taiwan contest this view; Spratly Islands outposts can be found on Alison Reef, Amboyna Cay, Barque Canada Reef, Central Reef, Collins Reef, Cornwallis South Reef, Discovery Great Reef, East Reef, Grierson Reef, Ladd Reef, Landsdowne Reef, Namyit Island, Pearson Reef, Petley Reef, Sand Cay, Sin Cowe Island, South Reef, Southwest Cay, Spratly Island, Tennent Reef, and West Reef; the underwater banks housing the stations include Vanguard, Rifleman, Prince of Wales, Prince Consort, Grainger, and Alexandra; in recent years, Vietnam has continued to enhance its outposts, including upgrades to defensive positions and infrastructure (2025).