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China has sent its maritime law enforcement through the waters of the Senkaku islands and military drones past remote Japan's territory as Beijing ramps up tensions over the Japan's leader's comments regarding Taiwan.

Patrol Operations

On Sunday, the China's maritime patrol stated that its vessels carried out a “lawful patrol operation” 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 maritime jurisdiction of the Diaoyu islands. This was a legitimate rights enforcement activity undertaken by the Chinese maritime authorities to uphold its rights and interests,” officials declared.

Bilateral Tensions

China and Japan have repeatedly faced off around the disputed territory but the latest activity occur during an escalating political dispute after the Japan's leader, the Japanese official, told parliament that if China attack the self-governing island of Taiwan it might provoke a military response from Japan.

That sparked an angry response from Beijing, which has indicated it demands a retraction from Takaichi.

Island's Stance

China claims the island as its own territory and intends to annex it under what it describes as “unification”. It has not ruled out the military option. The island's administration and people categorically refuse the prospect of Chinese rule – choosing to preserve the status quo without formally announcing independence, but pledging to protect their sovereignty if necessary.

An military assault by Beijing would risk escalating into a international confrontation, potentially involving the United States and other partner nations including Tokyo, which has territory just 110km (68 miles) from the island.

Defense Operations

In Taiwan, the military authorities reported this weekend that it had observed 30 Chinese military aircraft, seven navy ships and one government vessel, which was probably the coast guard, operating around the territory over the past 24 hours.

Maps provided by the ministry showed up to multiple UAVs flying between Taiwan and the Japan's territory off its north-east coast, seeming to travel particularly close to the nearby Japanese island. PLA movements there are occasional, but uncommon, and Chinese military activity in the island's ADIZ generally has been low in the past month.

Late on Saturday, the defense officials said Beijing had been conducting another “combined military exercise” to “test our defensive capabilities”. It added the island had sent its own aircraft and ships to monitor the situation. Taiwan documents these operations a couple of times a month as part of what the Taiwanese government says is an ongoing military pressure campaign.

Diplomatic Pressure

Tokyo has been experiencing increased strain from Beijing since the Japanese official made her comments, with Beijing's diplomatic representative in Osaka triggering an official complaint from Japan by stating 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 doomed to fail.

Warning for Citizens

Late last week, China cautioned its citizens against travelling to Japan, leading Japan to request China to take “suitable actions”, though it provided no details.

Three Chinese airlines said on Saturday that tickets to Japan could be cancelled without penalty.

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

Although not an outright prohibition, a significant decrease 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 education statistics. They included more than 123,000 Chinese students – by far the largest demographic.

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 limited skirmish; it would probably involve other nations, including the US, and could rapidly escalate to 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 “deliberate vagueness” also preferred by Japan's primary defense partner, the US.

Nevertheless, Beijing's governing 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, Beijing has also been escalating its non-military activity and its statements towards Taiwan.