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Beijing has deployed its coast guard through the waters of the Senkaku islands and military drones past outlying Japan's territory as Beijing ramps up strains following the Japanese prime minister’s remarks regarding Taiwan.

Rights Enforcement Activities

On Sunday, the China's maritime patrol stated that its ships conducted a “lawful patrol operation” through the territorial seas of the Senkaku, which are under the control of Japan but also asserted as territory by China.

“China coast guard vessel 1307 formation performed surveillance within the maritime jurisdiction of the Senkaku islands. This was a lawful patrol operation conducted by the China coast guard to protect its sovereign claims,” the statement said.

Bilateral Tensions

China and Japan have repeatedly faced off around the disputed territory but the latest activity occur during an intensifying diplomatic spat after the Japan's leader, the Japanese official, told parliament that if Beijing assaults democratically ruled Taiwan it could trigger a armed reaction from Japan.

That sparked an angry response from China, which has signalled it expects a retraction from the Japanese official.

Taiwan's Position

Beijing asserts the island as its own territory and intends to annex it under what it describes as “reunification”. It has not ruled out the military option. Taiwan’s government and people overwhelmingly reject the idea of Beijing's control – preferring to maintain the current situation without formally announcing independence, but pledging to protect their sovereignty if necessary.

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

Defense Operations

On the island, the defence ministry reported this weekend that it had observed 30 Chinese military aircraft, multiple naval vessels and one “official” ship, which was probably the coast guard, operating around the territory over the previous day.

Maps provided by the ministry showed up to three drones operating near Taiwan and the Japanese islands off its northeastern shoreline, seeming to travel unusually near to the nearby Japanese island. Chinese military transits there are not rare, but uncommon, and Chinese military activity in the island's ADIZ generally has been minimal in the past month.

Late on Saturday, 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 track the developments. Taiwan reports such Chinese patrols a few times monthly as part of what the Taiwanese government says is an continuous strategic pressure.

Diplomatic Pressure

Japan has been experiencing increased strain from China since Takaichi made her remarks, with China’s consul general in Osaka prompting a formal protest 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 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, leading Japan to request China to take “appropriate measures”, though it did not elaborate.

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

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

Although not an outright prohibition, 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 enrolled in Japanese schools last year, according to education statistics. They featured over 123,000 learners from China – by far the single biggest group.

Official Commentary

Late on Saturday, a official press commentary accused Takaichi of staging a diplomatic maneuver that was “not just dangerously provocative but fundamentally perverse”.

“A clash between Tokyo and Beijing would not be a limited skirmish; it would probably involve other powers, including the United States, and could rapidly escalate to a large-scale conflict with unimaginable consequences.”

Policy Standpoints

The administration in Taipei says only its people can decide its future. Japanese leaders have previously avoided publicly mentioning Taiwan when addressing potential conflicts, maintaining a “deliberate vagueness” also preferred by Tokyo’s main security ally, the United States.

However, China’s ruling Communist party says the unification of Taiwan with the People’s Republic of China is “unavoidable”, 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 statements towards the island.