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Beijing has deployed its coast guard through the maritime area of the Senkaku islands and unmanned aerial vehicles past remote Japan's territory as Beijing escalates tensions over the Japanese prime minister’s comments regarding the island of Taiwan.

Rights Enforcement Activities

This past Sunday, the China's maritime patrol stated that its ships conducted a “rights enforcement patrol” through the waters of the Senkaku, which are under the control of Japan but also claimed by Beijing.

“Chinese maritime patrol unit 1307 performed surveillance within the territorial waters 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 disputed territory but the recent developments come amid an escalating political dispute after the Japan's leader, the Japanese official, addressed lawmakers that if China attack the self-governing island of Taiwan it could trigger a military response from Tokyo.

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

Island's Stance

China claims Taiwan as its sovereign land and intends to annex it under what it describes as “unification”. It has not ruled out the use of force. The island's administration and citizens overwhelmingly reject the idea of Beijing's control – choosing to preserve the status quo without formally announcing independence, but vowing to defend themselves if necessary.

An military assault by Beijing would risk escalating into a regional or global conflict, possibly drawing in the US and other partner nations including Japan, which has land just 110km (68 miles) from Taiwan.

Military Activity

In Taiwan, the defence ministry reported this weekend that it had detected three dozen PLA planes, seven navy ships and one “official” ship, which was likely the coast guard, operating around the island over the previous day.

Official charts released showed up to three drones operating near the island and the Japanese islands off its northeastern shoreline, seeming to travel unusually near to the nearby Japanese island. PLA movements there are occasional, but uncommon, and Chinese military activity in the island's ADIZ generally has been minimal in recent weeks.

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

Diplomatic Pressure

Japan has been facing mounting pressure from Beijing since Takaichi made her comments, with Beijing's diplomatic representative in Osaka triggering an official complaint from Japan 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 Tokyo's involvement would be certain to collapse.

Warning for Citizens

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 flights to Tokyo could be cancelled without penalty.

In another escalation, Beijing's administration on Sunday advised students to rethink education plans in Japan, citing what it described as an unstable security environment.

While the advice does not amount to a ban, a dramatic reduction 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 education statistics. They included more than 123,000 Chinese students – by far the largest demographic.

Official Commentary

Late on Saturday, a Chinese state media editorial accused Takaichi of staging a political stunt 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 nations, including the United States, and could rapidly escalate to a major confrontation with unimaginable consequences.”

Policy Standpoints

The government of Taiwan says only its people can decide its future. Japanese leaders have previously avoided 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 incorporation of the island with the People’s Republic of China is “inevitable”, and portrays dissent as provocative. As it moves towards being capable of military annexation, Beijing has also been escalating its non-military activity and its rhetoric towards Taiwan.