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Beijing has deployed its maritime law enforcement into the maritime area of the Diaoyu islands and military drones near remote Japan's territory as China escalates strains following the Japanese prime minister’s comments regarding the island of Taiwan.

Rights Enforcement Activities

On Sunday, the China's maritime patrol announced that its ships conducted a “rights enforcement patrol” through the territorial seas of the Diaoyu islands, which are under the control of Japan but also claimed 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 China coast guard to uphold its rights and interests,” officials declared.

Bilateral Tensions

Beijing and Tokyo have consistently clashed around the disputed territory but the latest activity come amid an escalating political dispute after the Japan's leader, Sanae Takaichi, told parliament that if Beijing assaults democratically ruled Taiwan it could trigger a military response from Tokyo.

That provoked a furious reaction from Beijing, which has signalled it expects a retraction from Takaichi.

Island's Stance

China claims Taiwan as its sovereign land and intends to annex it under what it terms “unification”. It has not ruled out the military option. Taiwan’s government and people overwhelmingly reject the prospect of Chinese rule – choosing to preserve the current situation without explicitly declaring themselves independent, but vowing to defend themselves if required.

An military assault by Beijing would risk escalating into a international confrontation, possibly drawing in the United States and other allies including Japan, which has land just 68 miles from the island.

Military Activity

In Taiwan, the defence ministry said on Sunday morning 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 three drones flying between Taiwan and the Japanese islands off its north-east coast, seeming to travel unusually near to the nearby Japanese island. Chinese military transits there are not rare, but infrequent, and Beijing's defense operations in Taiwan’s air defence identification zone generally has been minimal in the past month.

Late on Saturday, the ministry said Beijing had been conducting another “combined military exercise” to “harass the airspace and sea around us”. It noted Taiwan had sent its own aircraft and ships to track the developments. The island reports such Chinese patrols a few times monthly as part of what the Taiwanese government says is an ongoing military pressure campaign.

Diplomatic Pressure

Japan has been facing mounting pressure from China since the Japanese official made her comments, with China’s consul general in the Japanese city prompting a formal protest from Japan by stating that “the dirty head that sticks itself out must be cut off”.

Beijing then summoned the Japanese ambassador for the first occasion since 2023, and China’s defence ministry declared that any Japanese intervention would be doomed to fail.

Warning for Citizens

On Friday, Beijing cautioned its citizens against travelling to Japan, leading Japan to request China to take “appropriate measures”, though it did not elaborate.

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

Adding to the tensions, China’s government on the weekend advised students to rethink education plans in Japan, citing what it characterized as an volatile safety situation.

Although not an outright prohibition, a significant decrease in the number of Chinese students could have a negative impact on academic institutions in Japan. A record 336,708 foreign nationals were studying in Japan last year, according to official data. They featured over 123,000 learners from China – by far the single biggest group.

Media Response

Late on Saturday, a Chinese state media editorial accused Takaichi of staging a diplomatic maneuver 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 nations, including the United States, and could quickly spiral into a large-scale conflict with severe repercussions.”

Strategic Positions

The government of Taiwan says only its people can decide its future. Officials in Tokyo have previously avoided discussing the island openly when addressing potential conflicts, maintaining a “strategic ambiguity” also favoured by Tokyo’s main security ally, the US.

Nevertheless, China’s ruling Communist party says the incorporation of the island with the People’s Republic of China is “unavoidable”, and casts any opposition to it as escalatory. As it moves towards being capable of military annexation, China has also been escalating its non-military activity and its statements towards the island.