China-Russia Drills in Japan’s EEZ Challenge Maritime Norms

A Chinese Luyang III-class guided-missile destroyer conducted live-fire drills within Japan’s Exclusive Economic Zone (EEZ) near the remote Okinotori Island early on Sunday. This incident, observed by Japan’s Maritime Self-Defense Force, occurred while the Chinese vessel operated alongside Russian naval ships, underscoring a deepening pattern of joint military activities that challenge regional maritime frameworks.

Japan’s Joint Staff reported that four vessels, including Chinese Renhai-class and Luyang III-class destroyers, a Fuchi-class replenishment ship, and a Russian Steregushchiy-class frigate, were spotted approximately 330 km southwest of Okinotori at 2 a.m. on July 19. The specific live-fire exercise by the Luyang III-class destroyer took place about 180 km southwest of the island. While a spokesperson for the Joint Staff clarified that the activity did not violate international rules, it marks the first public disclosure by Japan of such Chinese drills within its EEZ.

The structural pattern at play here is the ongoing contestation of maritime claims, particularly concerning the Exclusive Economic Zone. An EEZ grants sovereign rights for exploring and exploiting marine resources, extending up to 200 nautical miles from a state’s baseline. However, the validity of Japan’s EEZ around Okinotori Island is disputed by China, which maintains that Okinotori is merely a reef and not an island, thereby not entitled to an EEZ under international law.

This particular incident fits within a broader theme of increasing joint naval and air operations by China and Russia in proximity to Japan’s territory. These coordinated movements represent a significant development in regional geopolitics, compelling Tokyo to enhance its surveillance capabilities and strengthen its defenses, particularly across its southwest island chain. The persistent presence and operational assertiveness by these powers signal a strategic effort to test and potentially reshape the existing maritime security architecture in the Indo-Pacific.

The recurring nature of these exercises, combined with the underlying dispute over territorial definitions, illustrates a critical challenge to the established principles of maritime governance. It forces a re-evaluation of how international rules are interpreted and enforced when confronted by concerted efforts to assert alternative claims or project power. Understanding this structural tension is key to grasping the evolving dynamics of regional security.