A satellite image supplied by the US-based Centre for Strategic and International Studies shows Chinese dredgers working at the northernmost reclamation site of Mischief Reef, part of the Spratly Islands, in the South China Sea, on March 17.
It looks as if China is turning tiny coral reefs into islands big enough for airstrips and military bases. But who owns this land? That fact is not always clear. The Philippines has asked for arbitration from International Tribunal for the Law of the Sea and the U.N.’s Permanent Court of Arbitration  The Philippines and Vietnam have complained that China has huge construction projects under way on islands China may not legally own. A satellite image supplied by the US-based Centre for Strategic and International Studies shows Chinese dredgers working at the northernmost reclamation site of Mischief Reef, part of the Spratly Islands, in the South China Sea, on March 17. Photo: CSIS Asia Maritime Transparency Initiative
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