China Deploys Coast Guard Patrols East of Taiwan in Response to Japan-Philippines Maritime Border Talks

China deployed coast guard patrols east of Taiwan on June 1, 2026, in response to Japan and the Philippines planning maritime boundary talks. Beijing, which views Taiwan as its territory, called the talks illegal and an infringement on its sovereignty. Taiwan condemned the patrols, monitoring two Chinese vessels that did not enter its restricted waters. Japan stated any agreement between the two nations would not be legally binding on third parties.

China Coast Guard patrols

• ▪China's Coast Guard conducted "law enforcement" patrols in waters east of Taiwan on June 1, 2026
• ▪The Chinese patrols were a direct response to Japan and the Philippines announcing maritime boundary delimitation talks
• ▪A formation led by the Chinese coastguard vessel Daishan conducted the patrols
• ▪China Coast Guard spokesman Jiang Lue called the patrols a "necessary action" to safeguard China's sovereignty

Japan-Philippines maritime boundary talks

• ▪Japan's Chief Cabinet Secretary Minoru Kihara said any agreement between Japan and the Philippines would not be legally binding on "third parties."
• ▪China's foreign ministry declared the planned Japan-Philippines talks "completely illegal, null and void."
• ▪Japan and the Philippines announced they would begin formal talks to delimit the maritime boundary of their exclusive economic zone and continental shelf

Taiwan vessel monitoring response

• ▪The two Chinese vessels monitored by Taiwan did not enter its restricted waters
• ▪China stated the Japan-Philippines talks "seriously infringes" upon its territorial sovereignty and maritime rights
• ▪Taiwan's Foreign Ministry stated that China has no right to interfere in Taiwan's territorial sovereignty

China territorial sovereignty claims

• ▪Beijing views Taiwan as part of its territory to be reunified by force if necessary
• ▪China claims almost the entire South China Sea via a "nine-dash line," a claim rejected by Taiwan's government
• ▪China urged Japan and the Philippines to "immediately cease all illegal actions" that infringe upon its sovereignty

South China Sea disputes

• ▪The "nine-dash line" claim overlaps with the exclusive economic zones of the Philippines, Brunei, Malaysia, Vietnam, and Indonesia
• ▪Taiwan reports that Chinese warships and warplanes operate around the island almost daily