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China has deployed its coast guard through the maritime area of the Senkaku islands and unmanned aerial vehicles past outlying Japanese territory as Beijing ramps up tensions following the Japanese prime minister’s comments regarding the island of Taiwan.

Patrol Operations

This past Sunday, the China's maritime patrol stated that its vessels conducted a “rights enforcement patrol” through the territorial seas of the Senkaku, which are under the control of Japan but also asserted as territory by China.

“China coast guard vessel 1307 formation conducted patrols within the maritime jurisdiction of the Diaoyu islands. This was a lawful patrol operation conducted by the Chinese maritime authorities to uphold its rights and interests,” officials declared.

Diplomatic Spat

Beijing and Tokyo have repeatedly faced off around the islands but the latest activity come amid an escalating political dispute after the Japanese prime minister, Sanae Takaichi, told parliament that if Beijing assaults democratically ruled Taiwan it could trigger a armed reaction from Tokyo.

That sparked an angry response from Beijing, which has signalled it expects a retraction from the Japanese official.

Island's Stance

China claims Taiwan as its own territory and plans to incorporate it under what it terms “unification”. It has not ruled out the use of force. The island's administration and citizens overwhelmingly reject the prospect of Chinese rule – preferring to maintain the status quo without explicitly declaring themselves independent, but pledging to protect their sovereignty if necessary.

An attack or invasion by Beijing would threaten to spiral into a regional or global conflict, potentially involving the US and other partner nations including Tokyo, which has land just 110km (68 miles) from the island.

Defense Operations

On the island, the military authorities reported this weekend that it had observed three dozen PLA planes, multiple naval vessels and one government vessel, which was probably the maritime patrol, active near the territory over the previous day.

Official charts released showed up to three drones flying between the island and the Japanese islands off its northeastern shoreline, seeming to travel particularly close to Yonaguni. Chinese military transits there are occasional, but infrequent, and Chinese military activity in Taiwan’s air defence identification zone generally has been minimal in the past month.

Late on Saturday, the ministry said China had been conducting another “joint combat patrol” to “test our defensive capabilities”. It noted the island had dispatched military assets to track the developments. The island documents these operations a few times monthly as part of what the Taiwanese government says is an continuous strategic pressure.

Political Strain

Tokyo has been experiencing increased strain from China since the Japanese official made her comments, with Beijing's diplomatic representative in the Japanese city triggering an official complaint from Japan by stating that “the dirty head that sticks itself out must be cut off”.

Beijing then called in Japan's diplomat for the first occasion since 2023, and China’s defence ministry stated that any Tokyo's involvement would be certain to collapse.

Warning for Citizens

Late last week, Beijing advised its people to avoid visiting Japan, prompting Tokyo to urge Beijing to take “appropriate measures”, though it did not elaborate.

Multiple carriers from China announced this weekend that tickets to Japan could be cancelled without penalty.

Adding to the tensions, Beijing's administration on the weekend urged its citizens to “carefully reconsider” studying in Japan, citing what it described as an unstable security environment.

Although not an outright prohibition, a dramatic reduction in the number of Chinese students could have a negative impact 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 single biggest group.

Media Response

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

“A conflict between Japan and China would not be a small-scale encounter; it would likely draw in other powers, including the US, and could rapidly escalate to a large-scale conflict with severe repercussions.”

Policy Standpoints

The administration in Taipei says the island's residents alone determine their destiny. Officials in Tokyo have traditionally refrained from discussing the island openly when discussing such scenarios, maintaining a “strategic ambiguity” also preferred by Tokyo’s main security ally, the US.

However, Beijing's governing party says the unification of Taiwan with the People’s Republic of China is “inevitable”, and portrays dissent as provocative. As it moves towards being capable of military annexation, Beijing has also been escalating its non-military activity and its statements towards the island.