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Beijing has deployed its maritime law enforcement into the waters of the Senkaku islands and unmanned aerial vehicles past remote Japanese territory as Beijing ramps up strains over the Japanese prime minister’s comments regarding Taiwan.

Rights Enforcement Activities

This past Sunday, the Chinese coast guard announced that its ships conducted a “lawful patrol operation” through the territorial seas of the Senkaku, which are administered by Tokyo but also claimed by China.

“Chinese maritime patrol unit 1307 performed surveillance within the maritime jurisdiction of the Diaoyu islands. This was a lawful patrol operation conducted by the China coast guard to protect its sovereign claims,” officials declared.

Bilateral Tensions

China and Japan have repeatedly faced off around the islands but the recent developments come amid an escalating political dispute after the Japan's leader, Sanae Takaichi, told parliament that if China attack the self-governing island of Taiwan it might provoke a military response from Tokyo.

That sparked an angry response from China, 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 terms “unification”. It has left open the use of force. The island's administration and citizens categorically refuse the prospect of Chinese rule – preferring to maintain the status quo without formally announcing independence, but vowing to defend themselves if necessary.

An military assault by China would threaten to spiral into a regional or global conflict, potentially involving the US and other partner nations including Japan, which has land just 110km (68 miles) from the island.

Defense Operations

In Taiwan, the defence ministry reported this weekend that it had detected 30 Chinese military aircraft, multiple naval vessels and one “official” ship, which was probably the maritime patrol, operating around the territory over the past 24 hours.

Official charts released showed up to three drones operating near Taiwan and the Japanese islands off its northeastern shoreline, seeming to travel particularly close to Yonaguni. 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 the past month.

Earlier this weekend, the defense officials said Beijing had been carrying out another “combined military exercise” to “test our defensive capabilities”. It added Taiwan had sent its own aircraft and ships to track the developments. The island documents these operations a few times monthly as part of what the Taiwanese government says is an ongoing military pressure campaign.

Political Strain

Japan has been experiencing increased strain from China since the Japanese official made her comments, with Beijing's diplomatic representative in the Japanese city prompting a formal protest from Japan by stating that “those who interfere will face consequences”.

China then summoned the Japanese ambassador 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

Late last week, China advised its people to avoid visiting Japan, prompting Tokyo to urge Beijing to take “appropriate measures”, though it did not elaborate.

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

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

Although not an outright prohibition, a dramatic reduction 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 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 “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 US, and could rapidly escalate to a large-scale conflict with severe repercussions.”

Policy Standpoints

The administration in Taipei says the island's residents alone determine their destiny. Japanese leaders have previously avoided discussing the island openly when discussing such scenarios, maintaining a “deliberate vagueness” also preferred by Japan's primary defense partner, the United States.

Nevertheless, Beijing's governing party says the incorporation of the island with the People’s Republic of China is “inevitable”, and casts any opposition to it as escalatory. As it moves towards being capable of military annexation, Beijing has also been increasing its political operations and its rhetoric towards Taiwan.