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Beijing has deployed its coast guard into the maritime area of the Diaoyu islands and military drones past outlying Japan's territory as China ramps up strains over the Japanese prime minister’s comments regarding the island of Taiwan.

Patrol Operations

On Sunday, the China's maritime patrol stated that its vessels conducted a “rights enforcement patrol” through the waters of the Senkaku, which are administered by Tokyo but also asserted as territory by Beijing.

“China coast guard vessel 1307 formation conducted patrols within the maritime jurisdiction of the Senkaku islands. This was a legitimate rights enforcement activity undertaken by the China coast guard to protect its sovereign claims,” the statement said.

Bilateral Tensions

Beijing and Tokyo have repeatedly faced off around the disputed territory but the latest activity occur during an escalating political dispute after the Japanese prime minister, Sanae Takaichi, addressed lawmakers that if China attack democratically ruled Taiwan it could trigger a armed reaction from Japan.

That provoked a furious reaction from Beijing, which has indicated it demands a retraction from the Japanese official.

Island's Stance

Beijing asserts Taiwan as its sovereign land and plans to incorporate it under what it terms “unification”. It has left open the use of force. The island's administration and people overwhelmingly reject the idea of Beijing's control – choosing to preserve the current situation without formally announcing independence, but vowing to defend themselves if required.

An military assault by Beijing would risk escalating into a regional or global conflict, potentially involving the United States and other partner nations including Tokyo, which has land just 68 miles from Taiwan.

Defense Operations

In Taiwan, the defence ministry said on Sunday morning that it had observed three dozen PLA planes, multiple naval vessels and one “official” ship, which was probably the coast guard, active near the territory over the previous day.

Maps provided by the ministry showed up to three drones flying between the island and the Japanese islands off its northeastern shoreline, appearing to go unusually near to Yonaguni. PLA movements there are occasional, but uncommon, and Chinese military activity in Taiwan’s air defence identification zone generally has been low in recent weeks.

Late on Saturday, the defense officials said Beijing had been conducting another “joint combat patrol” 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.

Political Strain

Japan has been facing mounting pressure from Beijing since Takaichi made her remarks, with China’s consul general 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 declared that any Japanese intervention would be certain to collapse.

Warning for Citizens

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

Multiple carriers from China said on Saturday that tickets to Japan could be cancelled without penalty.

In another escalation, Beijing's administration on Sunday urged its citizens to “carefully reconsider” studying in Japan, citing what it described as an volatile safety situation.

While the advice does not amount to a ban, a dramatic reduction in the number of Chinese students could have a detrimental effect on Japanese universities. 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 largest demographic.

Media Response

Earlier this weekend, a official press commentary 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 powers, including the US, and could rapidly escalate to a large-scale conflict with unimaginable consequences.”

Strategic Positions

The administration in Taipei says only its people can decide its future. Japanese leaders have previously avoided discussing the island openly when addressing potential conflicts, 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 mainland China is “inevitable”, and portrays dissent as provocative. As it advances toward potential armed takeover, China has also been increasing its political operations and its statements towards Taiwan.