What’s China’s ‘nine-dash line’ and why has it created so much tension in the South China Sea?

The Permanent Court of Arbitration in The Hague is expected to deliver its ruling on China’s claims on Tuesday. Illustration: SCMP

At the heart of the South China Sea dispute is the “nine-dash line”, Beijing’s claim that encircles as much as 90 per cent of the ­contested waters. The line runs as far as 2,000km from the Chinese mainland to within a few hundred kilometres of the Philippines, Malaysia and Vietnam. Beijing maintains it owns any land or features contained within the line, which confers vaguely defined “historical maritime rights”.

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