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Beijing has sent its coast guard through the maritime area of the Senkaku islands and unmanned aerial vehicles past remote Japanese territory as China escalates tensions following the Japan's leader's remarks regarding the island of Taiwan.

Rights Enforcement Activities

This past Sunday, the Chinese coast guard stated that its vessels conducted a “rights enforcement patrol” through the waters of the Diaoyu islands, which are administered by Japan but also asserted as territory by China.

“China coast guard vessel 1307 formation conducted patrols within the territorial waters of the Diaoyu islands. This was a lawful patrol operation undertaken by the Chinese maritime authorities to uphold its rights and interests,” officials declared.

Diplomatic Spat

Beijing and Tokyo have consistently clashed around the disputed territory but the latest activity come amid an intensifying diplomatic spat after the Japanese prime minister, the Japanese official, told parliament that if China attack the self-governing island of Taiwan it could trigger a armed reaction from Japan.

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

Island's Stance

China claims the island as its own territory and plans to incorporate it under what it terms “reunification”. It has left open the use of force. The island's administration and people categorically refuse the idea of Beijing's control – preferring to maintain the status quo without explicitly declaring themselves independent, 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 allies including Tokyo, which has land just 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 “official” ship, which was probably the maritime patrol, operating around the island over the previous day.

Official charts released showed up to three drones flying between Taiwan and the Japan's territory off its north-east coast, appearing to go particularly close to the nearby Japanese island. Chinese military transits there are occasional, but infrequent, and Chinese military activity in the island's ADIZ generally has been low in recent weeks.

Earlier this weekend, 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 monitor the situation. Taiwan documents these operations a couple of times a month as part of what Taipei says is an ongoing military pressure campaign.

Diplomatic Pressure

Tokyo has been experiencing increased strain from China since the Japanese official made her remarks, with Beijing's diplomatic representative in the Japanese city triggering an official complaint from Tokyo by commenting that “those who interfere will face consequences”.

China then called in Japan's diplomat for the first occasion since 2023, and Beijing's military authorities stated that any Tokyo's involvement would be doomed to fail.

Travel and Education Advisory

On Friday, 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 said on Saturday that tickets to Japan could be cancelled without penalty.

Adding to the tensions, Beijing's administration on Sunday advised students to rethink education plans 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 detrimental effect 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

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 powers, including the US, and could quickly spiral into a major confrontation with severe repercussions.”

Policy Standpoints

The government of Taiwan says the island's residents alone determine their destiny. Officials in Tokyo have previously avoided publicly mentioning Taiwan when discussing such scenarios, maintaining a “strategic ambiguity” also preferred by Japan's primary defense partner, the United States.

Nevertheless, 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, China has also been increasing its political operations and its statements towards Taiwan.