China Dispatches Maritime Patrol Ships to Diaoyu Islands During Tensions with Tokyo

China has sent its coast guard into the maritime area of the Senkaku islands and military drones past outlying Japan's territory as China ramps up strains over the Japanese prime minister’s remarks regarding Taiwan.

Rights Enforcement Activities

On Sunday, the Chinese coast guard stated that its vessels conducted a “rights enforcement patrol” through the waters of the Diaoyu islands, which are administered by Japan but also asserted as territory by Beijing.

“China coast guard vessel 1307 formation conducted patrols within the territorial waters of the Diaoyu islands. This was a lawful patrol operation conducted by the China coast guard to uphold its rights and interests,” officials declared.

Diplomatic Spat

Beijing and Tokyo have consistently clashed around the disputed territory but the latest activity come amid an escalating political dispute after the Japanese prime minister, the Japanese official, told parliament that if China attack democratically ruled Taiwan it could trigger a military response from Japan.

That sparked an angry response from Beijing, which has indicated it demands a withdrawal from Takaichi.

Island's Stance

China claims the island as its own territory and plans to incorporate it under what it terms “unification”. It has left open the use of force. The island's administration and people overwhelmingly reject the idea of Beijing's control – choosing to preserve the status quo without formally announcing independence, but vowing to defend themselves if required.

An military assault by China would threaten to spiral into a international confrontation, potentially involving the United States and other partner nations including Japan, which has land just 110km (68 miles) from the island.

Military Activity

On the island, the military authorities said on Sunday morning that it had observed three dozen PLA planes, multiple naval vessels and one “official” ship, which was likely the coast guard, operating around the island over the previous day.

Maps provided by the ministry showed up to multiple UAVs operating near Taiwan and the Japan's territory off its northeastern shoreline, appearing to go unusually near 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 recent weeks.

Earlier this weekend, the ministry said China had been conducting another “combined military exercise” to “harass the airspace and sea around us”. It noted Taiwan had sent its own aircraft and ships to monitor the situation. The island reports such Chinese patrols a few times monthly as part of what the Taiwanese government says is an continuous strategic pressure.

Diplomatic Pressure

Tokyo has been experiencing increased strain from Beijing since the Japanese official made her comments, with China’s consul general in the Japanese city triggering an official complaint from Tokyo by commenting that “the dirty head that sticks itself out must be cut off”.

Beijing then summoned the Japanese ambassador for the first occasion since 2023, and Beijing's military authorities declared that any Japanese intervention 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 did not elaborate.

Multiple carriers from China said on Saturday that flights to Tokyo could be cancelled without penalty.

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 dramatic reduction in the number of Chinese students could have a negative impact 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 largest demographic.

Media Response

Earlier this weekend, a official press commentary accused Takaichi of staging a diplomatic maneuver that was “both reckless and fundamentally flawed”.

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

Strategic Positions

The administration in Taipei says the island's residents alone determine their destiny. Japanese leaders have traditionally refrained from discussing the island openly when addressing potential conflicts, maintaining a “strategic ambiguity” also favoured by Tokyo’s main security ally, the United States.

However, Beijing's governing party says the unification of Taiwan with the mainland China is “inevitable”, and casts any opposition to it as escalatory. As it moves towards being capable of military annexation, China has also been increasing its political operations and its rhetoric towards Taiwan.