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China has sent its maritime law enforcement into the waters of the Senkaku islands and military drones past outlying Japan's territory as China ramps up strains following the Japanese prime minister’s remarks regarding the island of Taiwan.

Rights Enforcement Activities

This past Sunday, the Chinese coast guard stated that its vessels conducted a “rights enforcement patrol” through the waters of the Diaoyu islands, which are under the control of Tokyo but also claimed by China.

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

Bilateral Tensions

China and Japan have repeatedly faced off around the islands but the recent developments come amid an escalating political dispute after the Japanese prime minister, the Japanese official, told parliament that if Beijing assaults the self-governing island of Taiwan it might provoke a armed reaction from Tokyo.

That sparked an angry response from China, which has indicated it demands a withdrawal from Takaichi.

Island's Stance

China claims Taiwan as its own territory and intends to annex it under what it describes as “reunification”. It has not ruled out the use of force. Taiwan’s government and citizens overwhelmingly reject the idea of Beijing's control – preferring to maintain the status quo without formally announcing independence, but pledging to protect their sovereignty if necessary.

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

Military Activity

In Taiwan, 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, operating around the territory over the past 24 hours.

Official charts released showed up to multiple UAVs operating near Taiwan and the Japan's territory off its northeastern shoreline, appearing to go particularly close to the nearby Japanese island. Chinese military transits there are occasional, but uncommon, and Beijing's defense operations in Taiwan’s air defence identification zone generally has been minimal in recent weeks.

Earlier this weekend, the ministry said China had been conducting another “joint combat patrol” to “harass the airspace and sea around us”. It added the island had sent its own aircraft and ships to track the developments. Taiwan documents these operations a few times monthly as part of what Taipei says is an continuous strategic pressure.

Diplomatic Pressure

Japan has been facing mounting pressure from China since Takaichi made her comments, with China’s consul general in Osaka triggering an official complaint from Tokyo by commenting that “the dirty head that sticks itself out must be cut off”.

China then called in Japan's diplomat for the first occasion since 2023, and Beijing's military authorities declared that any Japanese intervention would be certain to collapse.

Travel and Education Advisory

Late last week, China advised its people to avoid visiting Japan, leading Japan to request China to take “suitable actions”, though it did not elaborate.

Multiple carriers from China announced this weekend that flights to Tokyo could be refunded or changed for free.

In another escalation, China’s government on the weekend advised students to rethink education plans in Japan, citing what it described as an volatile safety situation.

While the advice does not amount to a ban, 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 studying in Japan last year, according to education statistics. They included more than 123,000 Chinese students – by far the single biggest group.

Media Response

Late on Saturday, a Chinese state media editorial charged the Japanese official with performing a diplomatic maneuver that was “not just dangerously provocative but fundamentally perverse”.

“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 large-scale conflict with severe repercussions.”

Strategic Positions

The administration in Taipei says only its people can decide its future. Japanese leaders have previously avoided discussing the island openly when addressing potential conflicts, maintaining a “deliberate vagueness” also preferred by Japan's primary defense partner, the United States.

However, China’s ruling Communist party says the unification of Taiwan with the mainland China is “inevitable”, and casts any opposition to it as escalatory. As it advances toward potential armed takeover, Beijing has also been escalating its non-military activity and its statements towards Taiwan.