Sky News visits the front line as China imposes itself on areas of the South China Sea claimed by five other countries.

China lays claim to most of this sea as its sovereign territory, but that is disputed by five other rival claimants.

And this is more than a local stand-off.

The US has been carrying out what it calls freedom of navigation patrols - effectively rejecting China's claim to territorial waters, and enforcing international maritime free passage.

Read more: https://news.sky.com/story/exclusive-...

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