Spratly Islands

around 70 disputed islets and reefs in the Spratly Islands are occupied by China, Malaysia, the Philippines, Taiwan, and Vietnam China: occupies seven outposts (Fiery Cross, Mischief, Subi, Cuarteron, Gavin, Hughes, and Johnson reefs); the outposts on Fiery Cross, Mischief, and Subi include air bases with helipads and aircraft hangers, naval port facilities, surveillance radars, air defense and anti-ship missile sites, and other military infrastructure such as communications, barracks, maintenance facilities, and ammunition and fuel bunkers Malaysia: occupies five outposts in the southern portion of the archipelago, closest to the Malaysian state of Sabah (Ardasier Reef, Eric Reef, Mariveles Reef, Shallow Reef, and Investigator Shoal); all the outposts have helicopter landing pads, while Shallow Reef also has an airstrip Philippines: occupies 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 has an airstrip and a coast guard station Taiwan: maintains a coast guard outpost with an airstrip on Itu Aba Island Vietnam: occupies about 50 outposts, plus some 14 platforms known as “economic, scientific, and technological service stations” (Dịch vụ-Khoa) that sit on underwater banks to the southeast that Vietnam does not consider part of the disputed island chain, although China and Taiwan disagree; Spratly Islands outposts are 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, West Reef; the underwater banks with stations include Vanguard, Rifleman, Prince of Wales, Prince Consort, Grainger, and Alexandra; in recent years, Vietnam has continued to make improvements to its outposts, including defensive positions and infrastructure (2025)