The Spratly Islands are a scattered archipelago of more than 100 small islands, reefs, cays, and submerged features in the southern South China Sea, lying roughly between the Philippines, Malaysia, Brunei, and Vietnam. They are claimed in whole or in part by six parties: China, Taiwan, Vietnam, the Philippines, Malaysia, and Brunei. The features themselves are largely uninhabitable in their natural state, but the surrounding waters are rich in fisheries, sit astride one of the world's busiest shipping lanes, and are believed to contain hydrocarbon reserves.
The dispute has several overlapping layers:
- Sovereignty over individual land features, argued on historical, geographical, and discovery grounds.
- Maritime entitlements under the 1982 UN Convention on the Law of the Sea (UNCLOS), including territorial seas, exclusive economic zones, and continental shelves.
- China's "nine-dash line" claim, which encompasses most of the South China Sea and overlaps with the EEZs of neighboring states.
A central legal moment came in July 2016, when an arbitral tribunal constituted under Annex VII of UNCLOS, in the case brought by the Philippines against China (Philippines v. China), ruled that China's nine-dash line had no legal basis under UNCLOS and that none of the Spratly features qualified as "islands" generating a full EEZ. China rejected the ruling and did not participate in the proceedings.
Since roughly 2013–2015, China has carried out large-scale land reclamation and militarization of features it occupies, including Fiery Cross, Subi, and Mischief Reefs, building runways, radar facilities, and missile installations. Vietnam, the Philippines, Taiwan, and Malaysia also occupy and have fortified various features.
ASEAN and China have negotiated intermittently on a Code of Conduct for the South China Sea, building on the non-binding 2002 Declaration on the Conduct of Parties (DOC), but a binding agreement has not been concluded. The dispute remains a flashpoint involving freedom of navigation operations, fishing confrontations, and broader US–China strategic competition.
Example
In July 2016, an UNCLOS Annex VII tribunal ruled in Philippines v. China that Beijing's nine-dash line had no legal basis, a decision China rejected.
Frequently asked questions
Six parties claim all or part of the archipelago: China, Taiwan, Vietnam, the Philippines, Malaysia, and Brunei. Brunei claims maritime zones but does not occupy any features.
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