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China has sent its coast guard through the maritime area of the Senkaku islands and military drones past outlying Japanese territory as China escalates strains over the Japan's leader's comments regarding the island of Taiwan.

Patrol Operations

On Sunday, the Chinese coast guard stated that its vessels carried out a “rights enforcement patrol” through the territorial seas of the Senkaku, which are under the control of Tokyo but also claimed by China.

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

Bilateral Tensions

Beijing and Tokyo have repeatedly faced off around the islands but the latest activity occur during an escalating political dispute after the Japanese prime minister, Sanae Takaichi, told parliament that if China attack democratically ruled Taiwan it could trigger a military response from Japan.

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

Island's Stance

Beijing asserts the island as its own territory and plans to incorporate it under what it terms “reunification”. It has not ruled out the use of force. Taiwan’s government and citizens categorically refuse the prospect of Chinese rule – choosing to preserve the status quo without formally announcing independence, but vowing to defend themselves if necessary.

An military assault by China would threaten to spiral into a regional or global conflict, potentially involving the United States and other partner nations including Tokyo, which has territory just 68 miles from Taiwan.

Military Activity

In Taiwan, the defence ministry reported this weekend that it had observed 30 Chinese military aircraft, multiple naval vessels 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 flying between Taiwan and the Japanese islands off its northeastern shoreline, appearing to go particularly close to Yonaguni. PLA movements there are occasional, but uncommon, and Chinese military activity in Taiwan’s air defence identification zone generally has been low in the past month.

Late on Saturday, the ministry said Beijing had been carrying out another “combined military exercise” to “harass the airspace and sea around us”. It added Taiwan had sent its own aircraft and ships to track the developments. The island documents these operations a few times monthly as part of what Taipei says is an continuous strategic pressure.

Political Strain

Japan has been experiencing increased strain from Beijing since Takaichi made her comments, with Beijing's diplomatic representative in the Japanese city prompting a formal protest from Japan by commenting that “those who interfere will face consequences”.

China 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 doomed to fail.

Warning for Citizens

On Friday, China cautioned its citizens against travelling to Japan, leading Japan to request China to take “suitable actions”, 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 the weekend advised students to rethink education plans in Japan, citing what it characterized as an unstable security environment.

Although not an outright prohibition, a dramatic reduction in the population of learners from China could have a detrimental effect on Japanese universities. A historic high of over 336,000 international students were enrolled in Japanese schools last year, according to official data. They featured over 123,000 learners from China – by far the largest demographic.

Official Commentary

Late on Saturday, a official press commentary charged the Japanese official with performing a political stunt that was “not just dangerously provocative but fundamentally perverse”.

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

Strategic Positions

The administration in Taipei says the island's residents alone determine their destiny. Japanese leaders have traditionally refrained from discussing the island openly when addressing potential conflicts, maintaining a “deliberate vagueness” also favoured by Japan's primary defense partner, the United States.

Nevertheless, Beijing's governing party says the incorporation of the island with the People’s Republic of China is “unavoidable”, and portrays dissent as provocative. As it advances toward potential armed takeover, China has also been escalating its non-military activity and its statements towards Taiwan.