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China has deployed its maritime law enforcement through the waters of the Diaoyu islands and military drones past outlying Japanese territory as China ramps up tensions following the Japanese prime minister’s comments regarding the island of Taiwan.

Rights Enforcement Activities

This past Sunday, the Chinese coast guard stated that its vessels carried out a “rights enforcement patrol” through the territorial seas of the Senkaku, which are administered by Japan 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 protect its sovereign claims,” the statement said.

Diplomatic Spat

China and Japan have repeatedly faced off around the islands but the latest activity occur during an intensifying diplomatic spat after the Japan's leader, Sanae Takaichi, addressed lawmakers that if Beijing assaults the self-governing island of Taiwan it might provoke a armed reaction from Tokyo.

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

Taiwan's Position

Beijing asserts the island as its own territory and intends to annex it under what it terms “unification”. It has not ruled out the military option. The island's administration and people categorically refuse the idea of Beijing's control – choosing to preserve the status quo without explicitly declaring themselves independent, but pledging to protect their sovereignty if required.

An military assault by China would threaten to spiral into a international confrontation, potentially involving the US and other allies including Japan, which has land just 68 miles from the island.

Defense Operations

In Taiwan, the defence ministry said on Sunday morning that it had observed 30 Chinese military aircraft, multiple naval vessels and one “official” ship, which was likely the maritime patrol, active near the territory over the previous day.

Maps provided by the ministry showed up to multiple UAVs 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 not rare, but uncommon, and Chinese military activity 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. 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

Tokyo has been facing mounting pressure from Beijing since Takaichi made her remarks, with China’s consul general in Osaka prompting a formal protest from Japan by commenting 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 Tokyo's involvement would be certain to collapse.

Warning for Citizens

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

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

Adding to the tensions, Beijing's administration on the weekend advised students to rethink education plans in Japan, citing what it described as an unstable security environment.

While the advice does not amount to a ban, a dramatic reduction in the number of Chinese students could have a negative impact on Japanese universities. A historic high of over 336,000 international students were studying in Japan last year, according to education statistics. They featured over 123,000 learners from China – by far the single biggest group.

Official Commentary

Late on Saturday, a official press commentary charged the Japanese official with performing a political stunt that was “both reckless and fundamentally flawed”.

“A conflict between Japan and China would not be a limited skirmish; it would likely draw in other powers, including the US, and could quickly spiral into a major confrontation with severe repercussions.”

Strategic Positions

The administration in Taipei says only its people can decide its future. Japanese leaders have previously avoided publicly mentioning Taiwan when discussing such scenarios, maintaining a “strategic ambiguity” also favoured by Japan's primary defense partner, the United States.

Nevertheless, Beijing's governing party says the incorporation of the island with the mainland China is “inevitable”, 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 rhetoric towards Taiwan.