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China has deployed its maritime law enforcement into the waters of the Diaoyu islands and unmanned aerial vehicles past remote Japanese territory as China ramps up strains over the Japanese prime minister’s remarks regarding Taiwan.

Patrol Operations

This past Sunday, the China's maritime patrol announced that its ships carried out a “rights enforcement patrol” through the territorial seas of the Diaoyu islands, which are administered by Tokyo but also asserted as territory by China.

“Chinese maritime patrol unit 1307 conducted patrols within the territorial waters of the Diaoyu islands. This was a lawful patrol operation undertaken by the China coast guard to protect its sovereign claims,” officials declared.

Diplomatic Spat

Beijing and Tokyo have consistently clashed around the islands but the latest activity come amid an intensifying diplomatic spat after the Japan's leader, the Japanese official, addressed lawmakers that if China attack the self-governing island of Taiwan it could trigger a armed reaction from Japan.

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

Taiwan's Position

Beijing asserts Taiwan as its own territory and plans to incorporate it under what it terms “reunification”. It has left open the use of force. 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 necessary.

An military assault by Beijing would threaten to spiral into a regional or global conflict, possibly drawing in the US and other partner nations including Japan, which has territory just 110km (68 miles) from the island.

Military Activity

On the island, the defence ministry reported this weekend that it had detected 30 Chinese military aircraft, seven navy ships and one government vessel, which was probably the maritime patrol, operating around the territory over the previous day.

Official charts released showed up to three drones operating near the island and the Japan's territory off its northeastern shoreline, seeming to travel unusually near to the nearby Japanese island. 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 ministry said Beijing had been carrying out another “joint combat patrol” to “harass the airspace and sea around us”. It noted Taiwan had dispatched military assets to monitor the situation. Taiwan documents these operations a few times monthly as part of what Taipei says is an ongoing military pressure campaign.

Political Strain

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 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 stated that any Japanese intervention would be doomed to fail.

Travel and Education Advisory

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

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

Adding to the tensions, Beijing's administration on Sunday 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 number of Chinese students could have a detrimental effect on Japanese universities. A record 336,708 foreign nationals were studying in Japan last year, according to official data. They included more than 123,000 Chinese students – by far the single biggest group.

Media Response

Earlier this weekend, a official press commentary accused Takaichi of staging a political stunt that was “both reckless and fundamentally flawed”.

“A clash between Tokyo and Beijing would not be a small-scale encounter; it would probably involve other powers, including the US, and could quickly spiral into a large-scale conflict with severe repercussions.”

Policy Standpoints

The government of Taiwan says only its people can decide its future. Japanese leaders have previously avoided publicly mentioning Taiwan when addressing potential conflicts, maintaining a “strategic ambiguity” also preferred by Japan's primary defense partner, the US.

Nevertheless, Beijing's governing party says the incorporation of the island with the mainland China is “inevitable”, and portrays dissent as provocative. As it moves towards being capable of military annexation, Beijing has also been increasing its political operations and its statements towards Taiwan.