China Sends Maritime Patrol Ships to Diaoyu Islands During Dispute with Tokyo

Beijing has deployed its maritime law enforcement into the maritime area of the Senkaku islands and unmanned aerial vehicles near remote Japan's territory as Beijing escalates strains following the Japan's leader's comments regarding the island of Taiwan.

Rights Enforcement Activities

On Sunday, the Chinese coast guard stated that its vessels carried out a “rights enforcement patrol” through the territorial seas of the Diaoyu islands, which are administered by Tokyo but also claimed by Beijing.

“Chinese maritime patrol unit 1307 conducted patrols within the territorial waters of the Diaoyu islands. This was a legitimate rights enforcement activity conducted by the China coast guard to protect its sovereign claims,” the statement said.

Bilateral Tensions

China and Japan have consistently clashed around the disputed territory but the recent developments come amid an intensifying diplomatic spat after the Japan's leader, the Japanese official, addressed lawmakers that if Beijing assaults democratically ruled Taiwan it might provoke a military response from Japan.

That provoked a furious reaction from Beijing, which has indicated it demands a withdrawal from Takaichi.

Taiwan's Position

Beijing asserts Taiwan as its own territory and plans to incorporate it under what it terms “unification”. It has not ruled out the military option. The island's administration and people overwhelmingly reject the prospect of Chinese rule – preferring to maintain the current situation without explicitly declaring themselves independent, but vowing to defend themselves if necessary.

An military assault by China would threaten to spiral into a regional or global conflict, possibly drawing in the United States and other allies including Tokyo, which has land just 110km (68 miles) from the island.

Military Activity

In Taiwan, the military authorities reported this weekend that it had observed three dozen PLA planes, seven navy ships and one “official” ship, which was probably the maritime patrol, operating around the territory over the past 24 hours.

Official charts released showed up to multiple UAVs flying between Taiwan and the Japanese islands off its north-east coast, seeming to travel particularly close to the nearby Japanese island. PLA movements there are occasional, but infrequent, and Chinese military activity in the island's ADIZ generally has been minimal in recent weeks.

Late on Saturday, the defense officials said China had been carrying out another “joint combat patrol” to “harass the airspace and sea around us”. It noted Taiwan had dispatched military assets 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.

Political Strain

Tokyo has been facing mounting pressure from Beijing since the Japanese official 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 called in Japan's diplomat for the first occasion since 2023, and Beijing's military authorities stated that any Japanese intervention would be certain to collapse.

Warning for Citizens

Late last week, China advised its people to avoid visiting 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.

While the advice does not amount to a ban, a significant decrease in the number of Chinese students 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 single biggest group.

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 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 government of Taiwan says the island's residents alone determine their destiny. Japanese leaders have traditionally refrained from publicly mentioning Taiwan when discussing such scenarios, maintaining a “deliberate vagueness” also favoured by Japan's primary defense partner, the US.

Nevertheless, Beijing's governing party says the unification of Taiwan with the People’s Republic of China is “unavoidable”, and casts any opposition to it as escalatory. As it advances toward potential armed takeover, China has also been escalating its non-military activity and its statements towards the island.