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China has deployed its coast guard through the waters of the Senkaku islands and military drones near remote Japanese territory as Beijing ramps up tensions over the Japan's leader's comments regarding Taiwan.

Rights Enforcement Activities

This past Sunday, the Chinese coast guard stated that its vessels conducted a “lawful patrol operation” through the territorial seas of the Senkaku, which are under the control of Japan but also claimed by China.

“Chinese maritime patrol unit 1307 performed surveillance within the territorial waters of the Diaoyu islands. This was a lawful patrol operation undertaken by the Chinese maritime authorities to protect its sovereign claims,” officials declared.

Bilateral Tensions

Beijing and Tokyo have repeatedly faced off around the islands but the recent developments come amid an escalating political dispute after the Japanese prime minister, Sanae Takaichi, addressed lawmakers that if Beijing assaults democratically ruled Taiwan it might provoke a military response from Japan.

That provoked a furious reaction from China, which has indicated it demands a retraction from Takaichi.

Island's Stance

China claims Taiwan as its sovereign land and intends to annex it under what it describes as “reunification”. It has left open the military option. Taiwan’s government and citizens overwhelmingly reject the idea of Beijing's control – choosing to preserve the status quo without formally announcing independence, but pledging to protect their sovereignty if required.

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

Defense Operations

In Taiwan, the military authorities said on Sunday morning that it had detected 30 Chinese military aircraft, seven navy ships and one government vessel, which was probably the maritime patrol, active near the island over the previous day.

Maps provided by the ministry showed up to three drones flying between the island and the Japan's territory off its northeastern shoreline, seeming to travel unusually near to the nearby Japanese island. Chinese military transits there are not rare, but uncommon, and Chinese military activity in the island's ADIZ generally has been low in the past month.

Earlier this weekend, the ministry said China had been carrying out another “combined military exercise” to “harass the airspace and sea around us”. It noted the island had dispatched military assets to monitor the situation. The island 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 facing mounting pressure from China since Takaichi made her remarks, with China’s consul general in the Japanese city prompting a formal protest from Japan by commenting 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 declared that any Tokyo's involvement would be certain to collapse.

Warning for Citizens

On Friday, Beijing advised its people to avoid visiting Japan, leading Japan to request China to take “appropriate measures”, though it provided no details.

Three Chinese airlines announced this weekend that flights to Tokyo could be cancelled without penalty.

In another escalation, Beijing's administration on Sunday advised students to rethink education plans 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 detrimental effect on academic institutions in Japan. A record 336,708 foreign nationals were studying in Japan last year, according to education statistics. They featured over 123,000 learners from China – by far the single biggest group.

Official Commentary

Late on Saturday, a official press commentary accused Takaichi of staging a diplomatic maneuver that was “both reckless and fundamentally flawed”.

“A conflict between Japan and China would not be a limited skirmish; it would probably involve other powers, including the United States, and could rapidly escalate to a major confrontation with severe repercussions.”

Strategic Positions

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 favoured by Japan's primary defense partner, the United States.

However, China’s ruling Communist party says the incorporation of the island with the mainland China is “unavoidable”, and casts any opposition to it as escalatory. As it moves towards being capable of military annexation, China has also been increasing its political operations and its statements towards the island.