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China has sent its coast guard through the maritime area of the Senkaku islands and military drones past outlying Japanese territory as Beijing ramps up tensions following the Japan's leader's remarks regarding the island of Taiwan.

Rights Enforcement Activities

This past Sunday, the China's maritime patrol announced that its ships carried out a “lawful patrol operation” through the territorial seas of the Diaoyu islands, which are under the control of Tokyo but also claimed by China.

“China coast guard vessel 1307 formation conducted patrols within the maritime jurisdiction of the Diaoyu islands. This was a lawful patrol operation undertaken by the China coast guard to protect its sovereign claims,” officials declared.

Bilateral Tensions

Beijing and Tokyo have consistently clashed around the islands but the recent developments come amid an intensifying diplomatic spat after the Japan's leader, Sanae Takaichi, addressed lawmakers that if Beijing assaults the self-governing island of Taiwan it could trigger a military response from Tokyo.

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

Taiwan's Position

China claims Taiwan as its sovereign land and plans to incorporate it under what it terms “reunification”. It has not ruled out the use of force. Taiwan’s government and people categorically refuse the prospect of Chinese rule – choosing to preserve the current situation without formally announcing independence, but pledging to protect their sovereignty if necessary.

An attack or invasion by China would risk escalating into a regional or global conflict, possibly drawing in the United States and other allies including Japan, which has territory just 68 miles from Taiwan.

Military Activity

On the island, the military authorities said on Sunday morning that it had observed 30 Chinese military aircraft, seven navy ships and one government vessel, which was likely the maritime patrol, operating around the island over the past 24 hours.

Maps provided by the ministry 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. PLA movements there are not rare, but infrequent, and Chinese military activity in the island's ADIZ generally has been low in the past month.

Late on Saturday, the defense officials said China had been conducting another “combined military exercise” to “test our defensive capabilities”. It added the island had sent its own aircraft and ships to track the developments. The island reports such Chinese patrols a couple of times a month as part of what Taipei says is an continuous strategic pressure.

Political Strain

Japan has been experiencing increased strain from Beijing since Takaichi made her remarks, with Beijing's diplomatic representative in Osaka triggering an official complaint from Tokyo by stating that “those who interfere will face consequences”.

Beijing then summoned the Japanese ambassador for the first occasion since 2023, and Beijing's military authorities 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.

Three Chinese airlines announced this weekend that tickets to Japan could be cancelled without penalty.

Adding to the tensions, China’s government on the weekend urged its citizens to “carefully reconsider” studying in Japan, citing what it described as an volatile safety situation.

Although not an outright prohibition, a significant decrease in the population of learners from China 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 included more than 123,000 Chinese students – by far the largest demographic.

Media Response

Late on Saturday, a official press commentary accused Takaichi of staging a diplomatic maneuver 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 United States, and could rapidly escalate to a major confrontation with severe repercussions.”

Policy Standpoints

The administration in Taipei says only its people can decide its future. Officials in Tokyo have traditionally refrained from publicly mentioning Taiwan when discussing such scenarios, maintaining a “strategic ambiguity” also favoured by Tokyo’s main security ally, the United States.

Nevertheless, Beijing's governing party says the unification of Taiwan with the mainland China is “unavoidable”, 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 the island.