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China has sent its maritime law enforcement through the maritime area of the Diaoyu islands and military drones near outlying Japan's territory as China escalates tensions following the Japan's leader's remarks regarding Taiwan.

Patrol Operations

This past Sunday, the China's maritime patrol announced that its ships carried out a “rights enforcement patrol” through the waters of the Senkaku, which are under the control of Japan but also claimed by Beijing.

“Chinese maritime patrol unit 1307 performed surveillance within the territorial waters of the Senkaku islands. This was a legitimate rights enforcement activity undertaken by the Chinese maritime authorities to protect its sovereign claims,” the statement said.

Diplomatic Spat

Beijing and Tokyo have repeatedly faced off 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 Beijing assaults the self-governing island of Taiwan it might provoke a military response from Tokyo.

That provoked a furious reaction 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 “unification”. It has left open the military option. The island's administration and citizens overwhelmingly reject the prospect of Chinese rule – choosing to preserve the current situation without formally announcing independence, but pledging to protect their sovereignty if required.

An attack or invasion by China would threaten to spiral into a international confrontation, possibly drawing in the United States and other allies including Japan, which has territory just 68 miles from the island.

Military Activity

In Taiwan, the military authorities reported this weekend that it had observed 30 Chinese military aircraft, multiple naval vessels and one government vessel, which was probably the coast guard, active near the island over the previous day.

Official charts released showed up to multiple UAVs flying between Taiwan and the Japan's territory off its north-east coast, appearing to go unusually near to the nearby Japanese island. PLA movements there are occasional, but infrequent, and Beijing's defense operations in Taiwan’s air defence identification zone generally has been low in the past month.

Earlier this weekend, the ministry said Beijing had been carrying out another “joint combat patrol” to “harass the airspace and sea around us”. It added 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 the Taiwanese government says is an ongoing military pressure campaign.

Political Strain

Tokyo has been facing mounting pressure from Beijing since Takaichi made her remarks, with Beijing's diplomatic representative in Osaka prompting a formal protest from Tokyo by commenting that “those who interfere will face consequences”.

Beijing 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 cautioned its citizens against travelling to Japan, leading Japan to request China to take “suitable actions”, though it did not elaborate.

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

Adding to the tensions, Beijing's administration on the weekend urged its citizens to “carefully reconsider” studying 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 population of learners from China could have a negative impact on Japanese universities. A record 336,708 foreign nationals were studying in Japan last year, according to official data. They included more than 123,000 Chinese students – by far the single biggest group.

Official Commentary

Late on Saturday, a official press commentary charged the Japanese official with performing a diplomatic maneuver that was “both reckless and fundamentally flawed”.

“A clash between Tokyo and Beijing would not be a limited skirmish; it would probably involve other powers, including the US, and could quickly spiral into a large-scale conflict with unimaginable consequences.”

Policy Standpoints

The government of Taiwan says only its people can decide its future. Japanese leaders have previously avoided discussing the island openly when addressing potential conflicts, maintaining a “strategic ambiguity” also preferred by Japan's primary defense partner, the US.

Nevertheless, China’s ruling Communist party says the incorporation of the island with the People’s Republic of China is “inevitable”, and casts any opposition to it as escalatory. As it moves towards being capable of military annexation, China has also been increasing its political operations and its statements towards Taiwan.