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Beijing has deployed its coast guard into the waters of the Diaoyu islands and military drones past remote Japanese territory as Beijing escalates tensions over the Japanese prime minister’s comments regarding the island of Taiwan.

Patrol Operations

On Sunday, the China's maritime patrol stated that its vessels carried out a “lawful patrol operation” through the territorial seas of the Senkaku, which are under the control of Japan but also claimed by Beijing.

“China coast guard vessel 1307 formation performed surveillance within the maritime jurisdiction of the Senkaku islands. This was a legitimate rights enforcement activity undertaken by the Chinese maritime authorities to uphold its rights and interests,” the statement said.

Diplomatic Spat

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

That sparked an angry response from China, which has signalled it expects a withdrawal from Takaichi.

Island's Stance

China claims Taiwan as its sovereign land and intends to annex it under what it describes as “reunification”. It has not ruled out the military option. The island's administration and citizens overwhelmingly reject the idea of Beijing's control – preferring to maintain the status quo without formally announcing independence, but pledging to protect their sovereignty if required.

An military assault by China would threaten to spiral into a international confrontation, possibly drawing in the United States and other partner nations including Tokyo, which has land just 68 miles from the island.

Military Activity

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

Maps provided by the ministry showed up to multiple UAVs operating near the island and the Japanese islands off its northeastern shoreline, appearing to go unusually near to the nearby Japanese island. PLA movements there are not rare, but infrequent, and Beijing's defense operations in Taiwan’s air defence identification zone generally has been low in recent weeks.

Late on Saturday, the defense officials said China had been conducting another “combined military exercise” to “test our defensive capabilities”. It noted the island had dispatched military assets to monitor the situation. The island reports such Chinese patrols a couple of times a month as part of what Taipei says is an continuous strategic pressure.

Political Strain

Japan has been experiencing increased strain from China since Takaichi made her comments, with Beijing's diplomatic representative in Osaka prompting a formal protest from Japan by commenting that “those who interfere will face consequences”.

China then summoned the Japanese ambassador 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, Beijing cautioned its citizens against travelling to Japan, prompting Tokyo to urge Beijing to take “suitable actions”, though it provided no details.

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

In another escalation, Beijing's administration on the weekend 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 dramatic reduction in the number of Chinese students could have a detrimental effect on Japanese universities. A record 336,708 foreign nationals 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 Chinese state media editorial accused Takaichi of staging a political stunt that was “not just dangerously provocative but fundamentally perverse”.

“A clash between Tokyo and Beijing would not be a small-scale encounter; it would probably involve other nations, including the United States, and could quickly spiral into a major confrontation with severe repercussions.”

Strategic Positions

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

Nevertheless, China’s ruling Communist party says the incorporation of the island with the mainland China is “inevitable”, and portrays dissent as provocative. As it moves towards being capable of military annexation, Beijing has also been increasing its political operations and its rhetoric towards Taiwan.