China Conducts Live-Fire Naval Drill in Japan-Claimed EEZ near Okinotorishima

Key Facts

• Date of Naval Drill: 20 July 2026
• Location: About 180 kilometres southwest of Okinotorishima, within area claimed by Japan as its EEZ
• Participants: Chinese Luyang III-class missile destroyer firing live rounds; presence of a Russian frigate
• Okinotorishima: Small coral atoll designated by Japan as its southernmost island
• Exclusive Economic Zone (EEZ) under UNCLOS extends up to 200 nautical miles from baseline
• Japan lodged a diplomatic protest on 21 July 2026 against the drill

Background & Context

China's live-fire drill occurred within Japan's claimed EEZ near Okinotorishima, an area of geopolitical and legal contention. While Japan asserts Okinotorishima generates an EEZ as per Article 121 of the United Nations Convention on the Law of the Sea (UNCLOS), which outlines criteria distinguishing islands from rocks or low-tide elevations, China disputes this, arguing Okinotorishima is too small and submerged at high tide to merit EEZ status. The presence of a Russian frigate alongside the Chinese destroyer indicates possible coordinated maritime operations in the western Pacific by China and Russia.

Why This Matters for Exams / Exam Relevance

This incident exemplifies key international law concepts related to maritime entitlements under UNCLOS, particularly the definition and legal status of islands (Article 121) and the scope of EEZ rights. It reflects ongoing maritime boundary disputes between China and Japan in the East China Sea and western Pacific. Understanding such events enhances comprehension of regional geopolitical dynamics, the operation of naval forces like China’s People’s Liberation Army Navy Luyang III-class destroyer, and international diplomatic responses. These are vital themes in international relations, law of the sea, and geopolitical studies relevant for exams.

Points to Remember

• UNCLOS defines the Exclusive Economic Zone (EEZ) extending up to 200 nautical miles from the coastal baseline.
• Article 121 of UNCLOS distinguishes islands capable of generating EEZ and continental shelf rights from rocks and low-tide elevations which cannot.
• Japan claims Okinotorishima as its southernmost island, which it uses as the basis for its EEZ claim in that area.
• China disputes Okinotorishima’s status under UNCLOS, contesting Japan’s maritime claims.
• The Chinese Luyang III-class missile destroyer is a modern warship of the People’s Liberation Army Navy involved in the drill.
• The presence of a Russian frigate suggests coordinated maritime activities between China and Russia in the region.
• Japan publicly confirmed this as the first known foreign navy live-fire exercise inside waters it claims under its EEZ and filed a diplomatic protest on 21 July 2026.