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China has deployed its maritime law enforcement through the waters of the Senkaku islands and unmanned aerial vehicles near remote Japan's territory as China escalates strains following the Japan's leader's remarks regarding Taiwan.

Patrol Operations

On Sunday, the Chinese coast guard announced that its ships carried out a “rights enforcement patrol” through the territorial seas of the Senkaku, which are under the control of Japan but also asserted as territory by Beijing.

“China coast guard vessel 1307 formation performed surveillance within the maritime jurisdiction 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

Beijing and Tokyo have repeatedly faced off around the islands but the latest activity occur during an intensifying diplomatic spat after the Japan's leader, Sanae Takaichi, told parliament that if Beijing assaults the self-governing island of Taiwan it might provoke a armed reaction from Japan.

That provoked a furious reaction from China, which has indicated it demands a retraction from the Japanese official.

Taiwan's Position

Beijing asserts the island as its own territory 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 categorically refuse the prospect of Chinese rule – preferring to maintain the status quo without formally announcing independence, but vowing to defend themselves if required.

An military assault by China would risk escalating into a international confrontation, potentially involving the United States and other partner nations including Japan, which has land just 110km (68 miles) from Taiwan.

Military Activity

On the island, the military authorities reported this weekend that it had observed three dozen PLA planes, seven navy ships and one “official” ship, which was probably the coast guard, active near the island over the past 24 hours.

Official charts released showed up to multiple UAVs operating near the island and the Japanese islands off its north-east coast, seeming to travel unusually near to the nearby Japanese island. Chinese military transits there are occasional, but uncommon, and Chinese military activity in Taiwan’s air defence identification zone generally has been minimal in recent weeks.

Earlier this weekend, the defense officials said China had been carrying out another “joint combat patrol” to “harass the airspace and sea around us”. It noted Taiwan had sent its own aircraft and ships to monitor the situation. Taiwan reports such Chinese patrols a few times monthly as part of what Taipei says is an continuous strategic pressure.

Diplomatic Pressure

Japan has been facing mounting pressure from Beijing since Takaichi made her comments, with China’s consul general in the Japanese city prompting a formal protest from Japan by commenting that “those who interfere will face consequences”.

Beijing 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 certain to collapse.

Travel and Education Advisory

Late last week, Beijing advised its people to avoid visiting Japan, prompting Tokyo to urge Beijing to take “appropriate measures”, though it did not elaborate.

Three Chinese airlines announced this weekend that flights to Tokyo could be cancelled without penalty.

In another escalation, China’s government on Sunday advised students to rethink education plans in Japan, citing what it described as an volatile safety situation.

Although not an outright prohibition, a dramatic reduction in the number of Chinese students could have a negative impact on Japanese universities. A record 336,708 foreign nationals were enrolled in Japanese schools last year, according to official data. They included more than 123,000 Chinese students – by far the largest demographic.

Official Commentary

Late on Saturday, a official press commentary charged the Japanese official with performing a political stunt that was “not just dangerously provocative but fundamentally perverse”.

“A conflict between Japan and China would not be a limited skirmish; it would probably involve other nations, including the United States, and could quickly spiral into a large-scale conflict with severe repercussions.”

Policy Standpoints

The government of Taiwan says only its people can decide its future. Officials in Tokyo have previously avoided discussing the island openly when addressing potential conflicts, maintaining a “deliberate vagueness” also favoured by Japan's primary defense partner, the United States.

Nevertheless, Beijing's governing party says the unification of Taiwan with the People’s Republic of 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 the island.