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China has sent its coast guard through the maritime area of the Senkaku islands and military drones near remote Japan's territory as Beijing ramps up strains following the Japan's leader's comments regarding the island of Taiwan.

Rights Enforcement Activities

On Sunday, the Chinese coast guard announced that its ships conducted a “lawful patrol operation” through the waters of the Senkaku, which are administered by Japan but also asserted as territory by China.

“Chinese maritime patrol unit 1307 conducted patrols within the territorial waters of the Senkaku islands. This was a legitimate rights enforcement activity conducted by the Chinese maritime authorities to uphold its rights and interests,” officials declared.

Bilateral Tensions

China and Japan have repeatedly faced off around the disputed territory but the latest activity 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 could trigger a military response from Tokyo.

That sparked an angry response from Beijing, which has indicated it demands a retraction from the Japanese official.

Island's Stance

Beijing asserts Taiwan as its own territory and intends to annex it under what it terms “reunification”. It has not ruled out the use of force. The island's administration and people overwhelmingly reject the prospect of Chinese rule – preferring to maintain the current situation without formally announcing independence, but vowing to defend themselves if necessary.

An military assault by Beijing would threaten to spiral into a regional or global conflict, potentially involving the US 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 detected three dozen PLA planes, seven navy ships and one government vessel, 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 the island and the Japanese islands off its northeastern shoreline, appearing to go unusually near to the nearby Japanese island. Chinese military transits there are not rare, but infrequent, and Chinese military activity in the island's ADIZ generally has been low in recent weeks.

Late on Saturday, the ministry said Beijing had been conducting another “combined military exercise” to “test our defensive capabilities”. It added the island had dispatched military assets to track the developments. The island documents these operations a few times monthly as part of what Taipei says is an ongoing military pressure campaign.

Diplomatic Pressure

Japan has been experiencing increased strain from Beijing since the Japanese official made her comments, with Beijing's diplomatic representative in Osaka prompting a formal protest from Tokyo by stating that “the dirty head that sticks itself out must be cut off”.

China then summoned the Japanese ambassador for the first occasion since 2023, and Beijing's military authorities declared that any Japanese intervention would be certain to collapse.

Travel and Education Advisory

Late last week, Beijing cautioned its citizens against travelling to Japan, leading Japan to request China to take “suitable actions”, though it provided no details.

Multiple carriers from China announced this weekend that tickets to Japan could be cancelled without penalty.

In another escalation, Beijing's administration on Sunday advised students to rethink education plans in Japan, citing what it characterized 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 negative impact on Japanese universities. A historic high of over 336,000 international students were enrolled in Japanese schools last year, according to official data. They included more than 123,000 Chinese students – by far the single biggest group.

Official Commentary

Earlier this weekend, a Chinese state media editorial 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 major confrontation with severe repercussions.”

Strategic Positions

The administration in Taipei says the island's residents alone determine their destiny. Officials in Tokyo have traditionally refrained from publicly mentioning Taiwan when addressing potential conflicts, maintaining a “strategic ambiguity” also preferred by Japan's primary defense partner, the United States.

However, 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 advances toward potential armed takeover, Beijing has also been escalating its non-military activity and its rhetoric towards Taiwan.