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

Rights Enforcement Activities

On Sunday, the China's maritime patrol announced that its vessels conducted a “lawful patrol operation” through the territorial seas of the Senkaku, which are under the control of Japan but also asserted as territory by Beijing.

“China coast guard vessel 1307 formation performed surveillance within the territorial waters of the Diaoyu islands. This was a legitimate rights enforcement activity conducted by the China coast guard to uphold its rights and interests,” officials declared.

Diplomatic Spat

Beijing and Tokyo have consistently clashed around the disputed territory but the recent developments occur during an intensifying diplomatic spat after the Japanese prime minister, Sanae Takaichi, addressed lawmakers that if China attack democratically ruled Taiwan it might provoke a military response from Tokyo.

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

Island's Stance

Beijing asserts the island as its sovereign land and intends to annex it under what it describes as “reunification”. It has not ruled out the military option. Taiwan’s government and people categorically refuse the prospect of Chinese rule – preferring to maintain the current situation without explicitly declaring themselves independent, but pledging to protect their sovereignty if required.

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

Defense Operations

In Taiwan, the defence ministry reported this weekend that it had detected three dozen PLA planes, seven navy ships and one “official” ship, which was probably the coast guard, operating around the island over the previous day.

Maps provided by the ministry showed up to three drones flying between the island and the Japanese islands off its north-east coast, seeming to travel particularly close to the nearby Japanese island. Chinese military transits there are occasional, but infrequent, and Beijing's defense operations in Taiwan’s air defence identification zone generally has been minimal in recent weeks.

Earlier this weekend, the ministry said China had been conducting another “combined military exercise” to “harass the airspace and sea around us”. It noted Taiwan had dispatched military assets to track the developments. Taiwan reports such Chinese patrols a couple of times a month as part of what Taipei says is an continuous strategic pressure.

Diplomatic Pressure

Japan has been experiencing increased strain from China since the Japanese official made her remarks, with Beijing's diplomatic representative in the Japanese city triggering an official complaint from Tokyo by commenting that “those who interfere will face consequences”.

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

Warning for Citizens

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

Multiple carriers from China announced this weekend that flights to Tokyo could be cancelled without penalty.

Adding to the tensions, China’s government on Sunday 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 academic institutions in Japan. 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.

Official Commentary

Late on Saturday, a Chinese state media editorial charged the Japanese official with performing a political stunt that was “not just dangerously provocative but fundamentally perverse”.

“A clash between Tokyo and Beijing would not be a limited skirmish; it would likely draw in other nations, including the United States, and could rapidly escalate to a major confrontation with severe repercussions.”

Policy Standpoints

The administration in Taipei says only its people can decide its future. Officials in Tokyo have traditionally refrained from discussing the island openly when addressing potential conflicts, maintaining a “strategic ambiguity” also favoured by Japan's primary defense partner, the US.

Nevertheless, China’s ruling Communist party says the unification of Taiwan with the mainland China is “inevitable”, and casts any opposition to it as escalatory. As it advances toward potential armed takeover, Beijing has also been increasing its political operations and its rhetoric towards Taiwan.