China Dispatches Coast Guard Ships to Diaoyu Islands Amid Dispute with Tokyo

China has deployed its maritime law enforcement into the waters of the Senkaku islands and unmanned aerial vehicles near outlying Japan's territory as China ramps up tensions over the Japan's leader's comments regarding Taiwan.

Rights Enforcement Activities

This past Sunday, the China's maritime patrol stated that its ships carried out a “lawful patrol operation” through the territorial seas of the Diaoyu islands, which are under the control of Japan but also claimed by China.

“China coast guard vessel 1307 formation conducted patrols within the territorial waters of the Senkaku islands. This was a lawful patrol operation conducted by the Chinese maritime authorities to uphold its rights and interests,” the statement said.

Diplomatic Spat

Beijing and Tokyo have consistently clashed around the disputed territory but the latest activity come amid an escalating political dispute after the Japanese prime minister, Sanae Takaichi, addressed lawmakers that if China attack the self-governing island of Taiwan it could trigger a armed reaction from Japan.

That provoked a furious reaction from Beijing, which has indicated it demands a withdrawal from the Japanese official.

Island's Stance

China claims the island as its own territory and plans to incorporate it under what it terms “unification”. It has not ruled out the use of force. Taiwan’s government and citizens overwhelmingly reject the prospect of Chinese rule – choosing to preserve the current situation without formally announcing independence, but pledging to protect their sovereignty if necessary.

An military assault by Beijing would risk escalating into a regional or global conflict, possibly drawing in the United States and other partner nations including Japan, which has land just 110km (68 miles) from Taiwan.

Defense Operations

On the island, the defence ministry said on Sunday morning that it had detected three dozen PLA planes, seven navy ships and one government vessel, which was likely the maritime patrol, active near the territory over the past 24 hours.

Maps provided by the ministry showed up to multiple UAVs operating near Taiwan and the Japanese islands off its north-east coast, seeming to travel unusually near to Yonaguni. PLA movements there are occasional, but uncommon, and Chinese military activity in the island's ADIZ generally has been low in recent weeks.

Late on Saturday, the defense officials said China had been carrying out another “combined military exercise” to “test our defensive capabilities”. It noted the island had sent its own aircraft and ships to monitor the situation. Taiwan documents these operations a couple of times a month as part of what Taipei says is an ongoing military pressure campaign.

Political Strain

Tokyo has been experiencing increased strain from China since Takaichi made her remarks, with China’s consul general in the Japanese city triggering an official complaint from Tokyo by commenting that “the dirty head that sticks itself out must be cut off”.

China then summoned the Japanese ambassador for the first occasion since 2023, and Beijing's military authorities stated that any Tokyo's involvement would be certain to collapse.

Warning for Citizens

Late last week, China advised its people to avoid visiting Japan, leading Japan to request China to take “appropriate measures”, though it provided no details.

Three Chinese airlines said on Saturday that tickets to Japan could be cancelled without penalty.

Adding to the tensions, China’s government on Sunday urged its citizens to “carefully reconsider” studying in Japan, citing what it characterized as an volatile safety situation.

Although not an outright prohibition, a significant decrease in the number of Chinese students could have a detrimental effect on Japanese universities. A record 336,708 foreign nationals were enrolled in Japanese schools last year, according to official data. They featured over 123,000 learners from China – by far the largest demographic.

Media Response

Late on Saturday, a official press commentary accused Takaichi of staging a diplomatic maneuver that was “not just dangerously provocative but fundamentally perverse”.

“A clash between Tokyo and Beijing would not be a small-scale encounter; it would probably involve other nations, including the United States, and could rapidly escalate to a large-scale conflict with severe repercussions.”

Policy Standpoints

The administration in Taipei says only its people can decide its future. Japanese leaders have previously avoided publicly mentioning Taiwan when addressing potential conflicts, maintaining a “deliberate vagueness” also preferred by Tokyo’s main security ally, the US.

Nevertheless, Beijing's governing party says the incorporation of the island with the mainland China is “inevitable”, and portrays dissent as provocative. As it moves towards being capable of military annexation, China has also been escalating its non-military activity and its rhetoric towards Taiwan.