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China has deployed its maritime law enforcement through the maritime area of the Senkaku islands and military drones near outlying Japan's territory as Beijing ramps up tensions over the Japanese prime minister’s remarks regarding the island of Taiwan.

Patrol Operations

On Sunday, the Chinese coast guard stated that its ships conducted a “lawful patrol operation” through the territorial seas of the Diaoyu islands, which are under the control of Tokyo but also claimed by China.

“Chinese maritime patrol unit 1307 conducted patrols within the territorial waters of the Senkaku 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 consistently clashed around the disputed territory but the recent developments occur during an intensifying diplomatic spat after the Japan's leader, Sanae Takaichi, told parliament that if Beijing assaults the self-governing island of Taiwan it could trigger a military response from Japan.

That sparked an angry response from China, which has indicated it demands a withdrawal from Takaichi.

Taiwan's Position

Beijing asserts Taiwan as its own territory and intends to annex it under what it terms “reunification”. It has left open the use of force. The island's administration and citizens overwhelmingly reject the idea of Beijing's control – preferring to maintain the current situation without explicitly declaring themselves independent, but pledging to protect their sovereignty if required.

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

Defense Operations

In Taiwan, the defence ministry said on Sunday morning that it had detected 30 Chinese military aircraft, seven navy ships and one “official” ship, which was likely the coast guard, active near the island over the past 24 hours.

Official charts released showed up to three drones operating near Taiwan and the Japan's territory off its northeastern shoreline, seeming to travel particularly close to the nearby Japanese island. 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 China had been carrying out another “joint combat patrol” to “harass the airspace and sea around us”. It noted the island had sent its own aircraft and ships to track the developments. 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 facing mounting pressure from China since the Japanese official made her remarks, 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 China’s defence ministry declared that any Japanese intervention would be certain to collapse.

Travel and Education Advisory

On Friday, 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, China’s government on the weekend urged its citizens to “carefully reconsider” studying in Japan, citing what it characterized 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 academic institutions in Japan. 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.

Official Commentary

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 conflict between Japan and China would not be a small-scale encounter; it would probably involve other powers, including the United States, and could quickly spiral into a major confrontation with unimaginable consequences.”

Strategic Positions

The government of Taiwan says the island's residents alone determine their destiny. Officials in Tokyo have traditionally refrained from discussing the island openly when discussing such scenarios, maintaining a “strategic ambiguity” also preferred by Japan's primary defense partner, the US.

However, China’s ruling Communist 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 rhetoric towards Taiwan.