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China has sent its maritime law enforcement into the maritime area of the Senkaku islands and military drones near remote Japan's territory as Beijing ramps up tensions following the Japan's leader's remarks regarding the island of Taiwan.

Patrol Operations

On Sunday, the Chinese coast guard announced that its ships carried out a “lawful patrol operation” through the territorial seas of the Senkaku, which are administered by Japan but also claimed by Beijing.

“Chinese maritime patrol unit 1307 performed surveillance within the maritime jurisdiction of the Senkaku islands. This was a legitimate rights enforcement activity undertaken by the China coast guard to uphold its rights and interests,” officials declared.

Diplomatic Spat

Beijing and Tokyo have repeatedly faced off around the islands but the recent developments come amid an intensifying diplomatic spat after the Japanese prime minister, Sanae Takaichi, told parliament 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 signalled it expects a retraction from the Japanese official.

Taiwan's Position

Beijing asserts the island as its sovereign land and plans to incorporate it under what it describes as “reunification”. It has not ruled out the military option. The island's administration 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 necessary.

An attack or invasion by China would threaten to spiral into a regional or global conflict, possibly drawing in the United States and other partner nations including Japan, which has land just 68 miles from Taiwan.

Military Activity

In Taiwan, the defence ministry reported this weekend that it had detected 30 Chinese military aircraft, multiple naval vessels and one government vessel, which was probably the coast guard, active near the territory over the past 24 hours.

Official charts released showed up to multiple UAVs flying between Taiwan and the Japan's territory off its north-east coast, seeming to travel particularly close to the nearby Japanese island. Chinese military transits there are occasional, but uncommon, and Beijing's defense operations in the island's ADIZ generally has been low in the past month.

Late on Saturday, the ministry said Beijing had been conducting another “joint combat patrol” to “test our defensive capabilities”. It noted Taiwan had sent its own aircraft and ships to monitor the situation. Taiwan reports such Chinese patrols a couple of times a month as part of what Taipei says is an ongoing military pressure campaign.

Political Strain

Japan has been facing mounting pressure from Beijing since the Japanese official made her remarks, with Beijing's diplomatic representative in the Japanese city prompting a formal protest from Japan by commenting that “the dirty head that sticks itself out must be cut off”.

Beijing then called in Japan's diplomat for the first occasion since 2023, and Beijing's military authorities stated that any Tokyo's involvement would be certain to collapse.

Travel and Education Advisory

On Friday, China cautioned its citizens against travelling to Japan, prompting Tokyo to urge Beijing to take “appropriate measures”, though it did not elaborate.

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

In another escalation, Beijing's administration 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 significant decrease in the number of Chinese students could have a detrimental effect on academic institutions in Japan. A historic high of over 336,000 international students 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.

Media Response

Earlier this weekend, a Chinese state media editorial accused Takaichi of staging a political stunt that was “both reckless and fundamentally flawed”.

“A clash between Tokyo and Beijing would not be a small-scale encounter; it would likely draw in other powers, including the US, and could rapidly escalate to a major confrontation with severe repercussions.”

Strategic Positions

The government of Taiwan says the island's residents alone determine their destiny. Officials in Tokyo have previously avoided publicly mentioning Taiwan when discussing such scenarios, maintaining a “deliberate vagueness” also preferred by Japan's primary defense partner, the US.

However, 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 advances toward potential armed takeover, Beijing has also been increasing its political operations and its rhetoric towards the island.