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China has deployed its maritime law enforcement through the waters of the Senkaku islands and military drones past outlying Japanese territory as China escalates strains following the Japanese prime minister’s remarks regarding the island of Taiwan.

Patrol Operations

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

“China coast guard vessel 1307 formation performed surveillance within the maritime jurisdiction of the Senkaku islands. This was a lawful patrol operation conducted by the China coast guard to protect its sovereign claims,” officials declared.

Bilateral Tensions

China and Japan 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, addressed lawmakers that if Beijing assaults the self-governing island of Taiwan it might provoke a armed reaction from Tokyo.

That provoked a furious reaction from China, which has signalled it expects a withdrawal from the Japanese official.

Taiwan's Position

Beijing asserts Taiwan as its own territory and plans to incorporate it under what it describes as “unification”. It has left open the military option. Taiwan’s government and people overwhelmingly reject the prospect of Chinese rule – choosing to preserve the status quo without explicitly declaring themselves independent, but vowing to defend themselves if necessary.

An attack or invasion by China would risk escalating into a regional or global conflict, potentially involving the United States and other allies including Tokyo, which has territory just 68 miles from Taiwan.

Military Activity

In Taiwan, the defence ministry said on Sunday morning that it had observed 30 Chinese military aircraft, seven navy ships and one “official” ship, which was probably the maritime patrol, operating around the island over the past 24 hours.

Maps provided by the ministry showed up to multiple UAVs operating near Taiwan and the Japan's territory off its north-east coast, appearing to go unusually near to Yonaguni. PLA movements there are not rare, but uncommon, and Chinese military activity in Taiwan’s air defence identification zone generally has been low in recent weeks.

Late on Saturday, the defense officials said Beijing had been carrying out another “joint combat patrol” to “test our defensive capabilities”. It added the island had dispatched military assets to monitor the situation. The island documents these operations a few times monthly as part of what the Taiwanese government says is an continuous strategic pressure.

Diplomatic Pressure

Japan has been experiencing increased strain from Beijing since Takaichi made her remarks, with China’s consul general in Osaka prompting a formal protest from Japan by commenting that “those who interfere will face consequences”.

Beijing then summoned the Japanese ambassador 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

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

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

Adding to the tensions, Beijing's administration on Sunday advised students to rethink education plans in Japan, citing what it described as an unstable security environment.

While the advice does not amount to a ban, a significant decrease in the population of learners from China could have a detrimental effect on Japanese universities. A record 336,708 foreign nationals were studying in Japan last year, according to education statistics. They featured over 123,000 learners from China – by far the largest demographic.

Official Commentary

Earlier this weekend, a Chinese state media editorial accused Takaichi of staging a political stunt that was “both reckless and fundamentally flawed”.

“A conflict between Japan and China would not be a small-scale encounter; it would probably involve other nations, including the US, and could rapidly escalate to 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 “deliberate vagueness” also favoured by Tokyo’s main security ally, the US.

Nevertheless, China’s ruling Communist party says the unification of Taiwan with the mainland China is “unavoidable”, and casts any opposition to it as escalatory. As it advances toward potential armed takeover, China has also been escalating its non-military activity and its rhetoric towards the island.