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Tsuruta Jun

Tsuruta Jun

The Diplomat

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China Coast Guard Exercises ‘Jurisdiction’ in Japan’s Exclusive Economic Zone

Japan now needs to formulate its response.

22.07.2026 9

The Diplomat

Tsuruta Jun

Chinese Marine Scientific Research in Japan’s Exclusive Economic Zone

Beijing is operating without permission. Tokyo must act.

19.10.2025 10

The Diplomat

Tsuruta Jun

UNCLOS, Warships, and the Right of Innocent Passage Debate

A Japan Maritime Self-Defense Force destroyer inadvertently entered Chinese territorial waters. What are the legal implications?

07.06.2025 10

The Diplomat

Tsuruta Jun