Beijing Sends Coast Guard Vessels to Diaoyu Islands Amid Tensions with Japan

Beijing has sent its coast guard into the waters of the Senkaku islands and military drones past outlying Japan's territory as Beijing escalates strains over the Japan's leader's remarks regarding Taiwan.

Patrol Operations

On Sunday, the China's maritime patrol announced that its ships carried out a “lawful patrol operation” through the waters 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 lawful patrol operation conducted by the Chinese maritime authorities to protect its sovereign claims,” officials declared.

Diplomatic Spat

China and Japan have consistently clashed around the islands but the recent developments occur during an escalating political dispute after the Japan's leader, Sanae Takaichi, addressed lawmakers that if China attack the self-governing island of Taiwan it might provoke a military response from Japan.

That provoked a furious reaction from China, which has signalled it expects a withdrawal from Takaichi.

Island's Stance

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. Taiwan’s government and citizens overwhelmingly reject the idea of Beijing's control – choosing to preserve the status quo without formally announcing independence, but pledging to protect their sovereignty if required.

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

Defense Operations

In Taiwan, the defence ministry reported this weekend that it had detected three dozen PLA planes, multiple naval vessels and one “official” ship, which was likely the coast guard, active near the island over the past 24 hours.

Maps provided by the ministry showed up to three drones operating near Taiwan and the Japan's territory off its north-east coast, appearing to go unusually near to Yonaguni. PLA movements there are not rare, but infrequent, and Chinese military activity in the island's ADIZ generally has been minimal in the past month.

Late on Saturday, the defense officials said China had been conducting another “joint combat patrol” to “test our defensive capabilities”. It added the island had dispatched military assets to track the developments. Taiwan reports such Chinese patrols a couple of times a month as part of what the Taiwanese government says is an ongoing military pressure campaign.

Political Strain

Tokyo has been facing mounting pressure from China since the Japanese official made her comments, with Beijing's diplomatic representative 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 doomed to fail.

Travel and Education Advisory

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

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

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

Although not an outright prohibition, a dramatic reduction in the number of Chinese students could have a negative impact on academic institutions in Japan. A record 336,708 foreign nationals were studying in Japan last year, according to education statistics. They featured over 123,000 learners from China – by far the largest demographic.

Media Response

Earlier this weekend, a official press commentary charged the Japanese official with performing a political stunt that was “both reckless and fundamentally flawed”.

“A conflict between Japan and China would not be a small-scale encounter; it would probably involve other powers, including the US, and could quickly spiral into a major confrontation 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 addressing potential conflicts, maintaining a “strategic ambiguity” also favoured by Japan's primary defense partner, the US.

Nevertheless, China’s ruling Communist party says the unification of Taiwan with the mainland China is “unavoidable”, and casts any opposition to it as escalatory. As it advances toward potential armed takeover, China has also been increasing its political operations and its rhetoric towards the island.