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Beijing has deployed its maritime law enforcement into the maritime area of the Diaoyu islands and military drones past remote Japan's territory as China escalates tensions following the Japanese prime minister’s remarks regarding Taiwan.

Rights Enforcement Activities

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

“Chinese maritime patrol unit 1307 performed surveillance within the territorial waters of the Senkaku 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 latest activity occur during an intensifying diplomatic spat 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 Beijing, which has signalled it expects a withdrawal from Takaichi.

Taiwan's Position

China claims the island as its own territory and intends to annex it under what it describes as “unification”. It has not ruled out the military option. The island's administration and people overwhelmingly reject the prospect of Chinese rule – choosing to preserve the current situation without explicitly declaring themselves independent, but pledging to protect their sovereignty if necessary.

An military assault by Beijing would threaten to spiral into a regional or global conflict, potentially involving the United States and other partner nations including Japan, which has territory just 68 miles from the island.

Defense Operations

On the island, the military authorities said on Sunday morning that it had observed 30 Chinese military aircraft, seven navy ships and one “official” ship, which was probably the coast guard, 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 the nearby Japanese island. Chinese military transits there are occasional, but infrequent, and Chinese military activity in the island's ADIZ generally has been minimal in recent weeks.

Earlier this weekend, the defense officials said Beijing had been conducting another “combined military exercise” to “harass the airspace and sea around us”. It added the island had sent its own aircraft and ships to monitor the situation. Taiwan documents these operations a few times monthly as part of what the Taiwanese government says is an ongoing military pressure campaign.

Diplomatic Pressure

Tokyo has been experiencing increased strain from China since Takaichi made her comments, with Beijing's diplomatic representative in Osaka triggering an official complaint from Japan by commenting that “the dirty head that sticks itself out must be cut off”.

China then summoned the Japanese ambassador for the first occasion since 2023, and Beijing's military authorities declared that any Tokyo's involvement would be doomed to fail.

Travel and Education Advisory

On Friday, Beijing cautioned its citizens against travelling to Japan, prompting Tokyo to urge Beijing to take “appropriate measures”, though it provided no details.

Three Chinese airlines said on Saturday that tickets to Japan could be refunded or changed for free.

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

While the advice does not amount to a ban, a significant decrease in the population of learners from China could have a detrimental effect on Japanese universities. A historic high of over 336,000 international students were studying in Japan last year, according to education statistics. They included more than 123,000 Chinese students – by far the largest demographic.

Media Response

Late on Saturday, a official press commentary charged the Japanese official with performing a political stunt 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 nations, including the United States, and could rapidly escalate to a large-scale conflict with severe repercussions.”

Policy Standpoints

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

However, China’s ruling Communist 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 statements towards the island.