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Beijing has deployed its maritime law enforcement through the maritime area of the Senkaku islands and military drones past remote Japanese territory as China escalates tensions over the Japanese prime minister’s remarks regarding the island of Taiwan.

Rights Enforcement Activities

This past Sunday, the Chinese coast guard announced that its vessels conducted a “lawful patrol operation” through the waters of the Diaoyu islands, which are administered by Japan but also claimed by China.

“Chinese maritime patrol unit 1307 conducted patrols within the territorial waters of the Diaoyu islands. This was a lawful patrol operation undertaken by the Chinese maritime authorities to protect its sovereign claims,” the statement said.

Diplomatic Spat

China and Japan have consistently clashed around the islands but the latest activity occur during an intensifying diplomatic spat after the Japanese prime minister, Sanae Takaichi, told parliament that if China attack democratically ruled Taiwan it could trigger a armed reaction from Tokyo.

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

Island's Stance

Beijing asserts the island as its sovereign land and intends to annex it under what it terms “reunification”. It has not ruled out the military option. Taiwan’s government and people categorically refuse the idea of Beijing's control – preferring to maintain the status quo without explicitly declaring themselves independent, but pledging to protect their sovereignty if required.

An attack or invasion by Beijing would threaten to spiral into a international confrontation, potentially involving the US and other partner nations including Tokyo, which has land just 110km (68 miles) from the island.

Military Activity

In Taiwan, the defence ministry said on Sunday morning that it had observed 30 Chinese military aircraft, multiple naval vessels and one government vessel, which was likely the coast guard, operating around 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 northeastern shoreline, appearing to go unusually near to the nearby Japanese island. PLA movements there are occasional, but uncommon, and Beijing's defense operations in Taiwan’s air defence identification zone generally has been minimal in the past month.

Earlier this weekend, the defense officials 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 monitor the situation. The island reports such Chinese patrols a few times monthly as part of what Taipei says is an continuous strategic pressure.

Diplomatic Pressure

Japan has been experiencing increased strain from Beijing since Takaichi made her remarks, with Beijing's diplomatic representative in the Japanese city prompting a formal protest from Japan by stating that “those who interfere will face consequences”.

China 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.

Warning for Citizens

On Friday, China cautioned its citizens against travelling to Japan, prompting Tokyo to urge Beijing to take “suitable actions”, though it provided no details.

Three Chinese airlines said on Saturday that flights to Tokyo could be refunded or changed for free.

In another escalation, China’s government on the weekend urged its citizens to “carefully reconsider” studying in Japan, citing what it described as an volatile safety situation.

Although not an outright prohibition, a significant decrease in the number of Chinese students could have a detrimental effect on Japanese universities. A historic high of over 336,000 international students were studying in Japan 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 charged the Japanese official with performing a diplomatic maneuver 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 US, 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 publicly mentioning Taiwan when addressing potential conflicts, maintaining a “strategic ambiguity” also preferred by Tokyo’s main security ally, the US.

Nevertheless, Beijing's governing party says the incorporation of the island with the mainland China is “inevitable”, and portrays dissent as provocative. As it advances toward potential armed takeover, Beijing has also been increasing its political operations and its rhetoric towards Taiwan.