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Beijing has deployed its maritime law enforcement into the waters of the Senkaku islands and military drones past remote Japan's territory as China ramps up tensions over the Japanese prime minister’s remarks regarding the island of Taiwan.

Rights Enforcement Activities

On Sunday, the Chinese coast guard stated that its vessels conducted a “rights enforcement patrol” through the waters of the Senkaku, which are under the control of Tokyo but also asserted as territory by China.

“Chinese maritime patrol unit 1307 conducted patrols within the maritime jurisdiction of the Diaoyu islands. This was a lawful patrol operation undertaken 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 latest activity come amid an escalating political dispute after the Japanese prime minister, the Japanese official, addressed lawmakers that if China attack the self-governing island of Taiwan it could trigger a armed reaction from Japan.

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

Taiwan's Position

Beijing asserts Taiwan as its own territory and intends to annex it under what it terms “reunification”. It has left open the military option. Taiwan’s government and citizens overwhelmingly reject the prospect of Chinese rule – choosing to preserve the current situation without formally announcing independence, but vowing to defend themselves if necessary.

An attack or invasion by China would threaten to spiral into a regional or global conflict, possibly drawing in the US and other allies including Japan, which has territory just 110km (68 miles) from the island.

Military Activity

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 likely the coast guard, operating around the island over the past 24 hours.

Maps provided by the ministry showed up to three drones operating near Taiwan and the Japan's territory off its northeastern shoreline, seeming to travel particularly close to the nearby Japanese island. PLA movements there are occasional, but infrequent, and Beijing's defense operations in the island's ADIZ generally has been low in recent weeks.

Earlier this weekend, the defense officials said China had been conducting another “joint combat patrol” to “test our defensive capabilities”. It noted 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 the Japanese official made her comments, with Beijing's diplomatic representative in Osaka prompting a formal protest from Tokyo by stating that “those who interfere will face consequences”.

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 doomed to fail.

Travel and Education Advisory

On Friday, Beijing cautioned its citizens against travelling to Japan, prompting Tokyo to urge Beijing to take “appropriate measures”, though it did not elaborate.

Multiple carriers from China said on Saturday that tickets to Japan could be cancelled without penalty.

Adding to the tensions, Beijing's administration on the weekend urged its citizens to “carefully reconsider” studying in Japan, citing what it described as an unstable security environment.

While the advice does not amount to a ban, a significant decrease in the number of Chinese students could have a detrimental effect on Japanese universities. A record 336,708 foreign nationals 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.

Media Response

Earlier this weekend, a official press commentary accused Takaichi of staging a diplomatic maneuver 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 powers, including the United States, and could quickly spiral into a large-scale conflict with unimaginable consequences.”

Policy Standpoints

The government of Taiwan 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 “strategic ambiguity” also preferred by Tokyo’s main security ally, the US.

Nevertheless, China’s ruling Communist party says the unification of Taiwan with the People’s Republic of 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 rhetoric towards Taiwan.