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Beijing has sent its maritime law enforcement through the maritime area of the Senkaku islands and unmanned aerial vehicles near outlying Japan's territory as Beijing ramps up tensions 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 ships conducted a “lawful patrol operation” through the territorial seas of the Senkaku, which are under the control of Tokyo but also claimed by China.

“Chinese maritime patrol unit 1307 performed surveillance within the territorial waters of the Senkaku islands. This was a legitimate rights enforcement activity conducted by the China coast guard to uphold its rights and interests,” the statement said.

Bilateral Tensions

Beijing and Tokyo have repeatedly faced off around the disputed territory but the latest activity come amid an intensifying diplomatic spat after the Japan's leader, the Japanese official, told parliament that if Beijing assaults the self-governing island of Taiwan it could trigger a military response from Japan.

That sparked an angry response from Beijing, which has signalled it expects a withdrawal from Takaichi.

Island's Stance

Beijing asserts Taiwan as its own territory and plans to incorporate it under what it terms “reunification”. It has left open the military option. Taiwan’s government and people overwhelmingly reject the prospect of Chinese rule – preferring to maintain the status quo without formally announcing independence, but pledging to protect their sovereignty if necessary.

An military assault by Beijing 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 the island.

Defense Operations

On the island, the military authorities reported this weekend that it had detected 30 Chinese military aircraft, multiple naval vessels and one “official” ship, which was probably the maritime patrol, active near the island over the past 24 hours.

Maps provided by the ministry showed up to multiple UAVs operating near Taiwan and the Japan's territory off its north-east coast, appearing to go particularly close to Yonaguni. PLA movements there are not rare, 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 “joint combat patrol” to “harass the airspace and sea around us”. It noted Taiwan had dispatched military assets to track the developments. Taiwan documents these operations a couple of times a month as part of what Taipei says is an continuous strategic pressure.

Diplomatic Pressure

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

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

Warning for Citizens

Late last week, China advised its people to avoid visiting Japan, prompting Tokyo to urge Beijing to take “appropriate measures”, though it provided no details.

Three Chinese airlines announced this weekend that flights to Tokyo could be refunded or changed for free.

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 population of learners from China could have a negative impact 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 single biggest group.

Official Commentary

Earlier this weekend, a Chinese state media editorial accused Takaichi of staging a political stunt that was “both reckless and fundamentally flawed”.

“A clash between Tokyo and Beijing would not be a limited skirmish; it would likely draw in other powers, including the United States, and could quickly spiral into a major confrontation with unimaginable consequences.”

Strategic Positions

The government of Taiwan says only its people can decide its future. Officials in Tokyo have traditionally refrained from publicly mentioning Taiwan when discussing such scenarios, maintaining a “strategic ambiguity” 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 “inevitable”, and portrays dissent as provocative. As it advances toward potential armed takeover, Beijing has also been escalating its non-military activity and its rhetoric towards the island.