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Beijing has deployed its maritime law enforcement into the waters of the Diaoyu islands and military drones near remote Japanese territory as Beijing ramps up strains over the Japanese prime minister’s comments regarding the island of Taiwan.

Patrol Operations

This past Sunday, the China's maritime patrol stated that its ships carried out a “lawful patrol operation” through the waters of the Diaoyu islands, which are administered by Japan but also claimed by Beijing.

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

Bilateral Tensions

China and Japan have repeatedly faced off around the islands but the latest activity come amid an intensifying diplomatic spat after the Japanese prime minister, Sanae Takaichi, told parliament that if Beijing assaults democratically ruled Taiwan it might provoke a military response from Tokyo.

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

Taiwan's Position

Beijing asserts Taiwan as its sovereign land and intends to annex it under what it terms “unification”. It has not ruled out the use of force. The island's administration and citizens overwhelmingly reject the prospect of Chinese rule – preferring to maintain the status quo without formally announcing independence, but vowing to defend themselves if required.

An attack or invasion by Beijing would risk escalating into a regional or global conflict, potentially involving the United States and other partner nations including Tokyo, which has territory just 110km (68 miles) from Taiwan.

Defense Operations

On the island, the military authorities said on Sunday morning that it had detected 30 Chinese military aircraft, seven navy ships and one government vessel, which was likely the maritime patrol, operating around the island over the past 24 hours.

Official charts released showed up to three drones operating near Taiwan and the Japanese islands off its north-east coast, seeming to travel unusually near to the nearby Japanese island. Chinese military transits there are not rare, but infrequent, and Beijing's defense operations in the island's ADIZ generally has been low in recent weeks.

Earlier this weekend, the ministry said Beijing had been carrying out another “joint combat patrol” to “harass the airspace and sea around us”. It noted Taiwan had dispatched military assets to track the developments. The island reports such Chinese patrols a couple of times a month as part of what the Taiwanese government says is an continuous strategic pressure.

Diplomatic Pressure

Japan has been facing mounting pressure from Beijing since Takaichi made her comments, with Beijing's diplomatic representative in the Japanese city triggering an official complaint from Japan by stating that “those who interfere will face consequences”.

China then summoned the Japanese ambassador for the first occasion since 2023, and China’s defence ministry declared that any Japanese intervention would be certain to collapse.

Warning for Citizens

Late last week, China advised its people to avoid visiting Japan, prompting Tokyo to urge Beijing to take “suitable actions”, though it provided no details.

Three Chinese airlines announced this weekend that flights to Tokyo could be refunded or changed for free.

In another escalation, Beijing's administration on the weekend advised students to rethink education plans in Japan, citing what it characterized as an volatile safety situation.

While the advice does not amount to a ban, a dramatic reduction 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 featured over 123,000 learners from China – by far the single biggest group.

Media Response

Late on Saturday, a official press commentary accused Takaichi of staging a diplomatic maneuver 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 US, and could quickly spiral into a major confrontation with unimaginable consequences.”

Policy Standpoints

The government of Taiwan says the island's residents alone determine their destiny. Officials in Tokyo have traditionally refrained from discussing the island openly when discussing such scenarios, maintaining a “deliberate vagueness” also preferred by Japan's primary defense partner, 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 advances toward potential armed takeover, Beijing has also been increasing its political operations and its rhetoric towards the island.