
Introduction
This article reviews China's heavy-handed response to an announcement by Japan and the Philippines that they intend to delimit their exclusive economic zone (EEZ) maritime boundary east of Taiwan. It will first briefly discuss the some of the outcomes of the May 2026 Japan-Philippines Summit meeting, where the two nations announced (inter alia) their intention to delimit their maritime boundary. It will then discuss China's diplomatic response to the proposed delimitation, as well as China's special maritime law enforcement operation east of Taiwan intended to discourage Japan and the Philippines from negotiating the boundary agreement without China's participation. The article will then discuss the relevant international law applicable to maritime delimitations and the authorities coastal States enjoy over foreign-flagged vessels in the various maritime zones. The article will next review the legality of China's unprecedented special maritime law enforcement operation and will conclude with the observation that the operation was inconsistent with international law, as it impeded high seas freedoms of navigation of foreign-flagged vessels and violated the principle of exclusive flag State jurisdiction applicable beyond the territorial sea.
Japan-Philippines Summit Meeting
During a







