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The US Navy destroyer Rafael Peralta makes a port call at Ishigaki Island in the southwestern Japan prefecture of Okinawa on March 11. Photo: Kyodo

Japan wants to enhance civilian air hubs and seaports for ‘contingency’. Are these also for the US military?

  • No official details yet on involvement of US forces, but the sighting of a Chinese unmanned aircraft near Japanese waters has raised a security spectre
  • Fear of provoking Beijing as well as resistance from locals could explain muted stance on such facilities, analyst says
Japan
Japan plans to expand and enhance facilities at existing civilian air hubs and seaports across the country for military use in the event of a “contingency” in the region, according to reports in Tokyo.
Military observers say the move is essential as such infrastructure in the region is lacking at present, but expansion would involve existing facilities being “multiplied several times over” and consultations with residents.

They also point out such facilities would no doubt be made available to the US military if a security crisis erupts.

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“Japan is making the case that these facilities will be important in the event of a natural disaster in the region and that they will benefit islanders, but neither Japan nor the US are talking about US personnel using them,” said Garren Mulloy, a professor of international relations at Daito Bunka University and a specialist in military issues.
“That is likely to be for fear of pushback from the local residents as much as an effort to avoid provoking China,” he told This Week in Asia.
Quoting unnamed government sources, national broadcaster NHK earlier said five airports and 11 seaports had been identified for significant upgrades due to growing concerns over mainland Chinese pressure on Taiwan and Beijing’s continued claims to the disputed Diaoyu Islands in the East China Sea. Tokyo administers the territories and refers to them as the Senkaku Islands.

Most of the facilities that have been earmarked for dual use are in the southwest of Japan and include airports in Naha, Nagasaki, Miyazaki, Fukue and Kitakyushu, which serves Fukuoka.

The southern seaports are Ishigaki in Okinawa, Hakata in Kyushu, and Kochi, Susaki, Sukumo Bay and Takamatsu in Shikoku. In the north, presumably to face any challenges posed by North Korea or Russia’s Far East fleet, the ports of Muroran, Kushiro, Rumoi, Tomakomai and Ishikari will also receive upgrades.

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Japan’s military holds drill on island potentially vulnerable to China

Japan’s military holds drill on island potentially vulnerable to China

“Efforts need to be made to enhance the presence and capabilities of the Self-Defence Forces in the southwest of Japan to deal with possible contingencies involving Taiwan and other areas,” said Masafumi Iida, a leading China analyst at the National Institute of Defence Studies in Tokyo.

“At the moment, there is a lack of the military infrastructure that is needed, and the plan is to use existing infrastructure and make it dual civilian-military use,” he told This Week in Asia.

A shortage of air facilities is a critical concern across the islands of Okinawa prefecture, including in the most westerly island of Yonaguni. The existing airfields would be susceptible to missile attacks, Iida said, and defences would need to be introduced.

There is also a need to construct accommodation for more personnel, hardened shelters for command-and-control functions and aircraft when they are on the ground, as well as storage for additional fuel supplies and weapons.

Runways will need to be extended and potentially widened, and care must be taken to ensure that such surfaces are suitable for fighter jets to operate from.

Yonaguni island in Japan’s Okinawa prefecture. Photo: Reuters/Kyodo

Daito Bunka University’s Mulloy agrees that facilities for aircraft are relatively rudimentary in the region at present and will need to be comprehensively improved, including the provision of local air traffic control, additional military-grade radar and secure power sources.

“Every element that civilian aircraft use needs to be multiplied several times over for military aircraft and ground operations, including the very basic stuff such as pre-positioning the special fuel that is required, stores, weapons and the personnel that are needed,” he said.

“And then there is the question of integrating all these elements into the existing infrastructure, so this is not going to be as easy as extending a runway and saying it’s all ready.”

Enhancing naval ports was likely to be more straightforward, he said, although new channels would be need to be dredged for warships with deeper draughts than locally based fishing boats or coastal freighters, and additional wharves would need to be constructed and protected facilities for fuel, while stores and ammunition were also required.

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Neither Japan nor the United States has commented on whether American forces would be granted access to the new air and sea facilities, but Mulloy believes this is a given during a regional security crisis.

“The reality is that the US and Japanese forces are closely integrated and if the SDF is in action in this region, then the US 7th Fleet will be with them.”

The Japanese government has reportedly earmarked 35 billion yen (US$231 million) for the first phase of the expansion plan, with more funds expected to be forthcoming.

Before work begins, however, there will need to be discussions with local residents, some of whom are likely to express concern that a greater military presence in their communities will make them a target in the event of a contingency. Consultations in previous projects have been prolonged and could delay the completion of facilities.

Japanese defence ministry spotted a Chinese military drone flying over waters between the islands of Okinawa and Miyakojima in southwestern Japan in January 2023. Photo: Japanese Defence Ministry

The need for greater defensive capabilities at sea and in the air was underlined by the sighting on Tuesday of a Chinese WZ-7 unmanned aerial vehicle over the Sea of Japan, the first time a Chinese drone has been detected operating in the area.

The aircraft approached Japanese airspace from mainland Asia and analysts believe it flew over Russia before reaching the Sea of Japan, another indication of greater military cooperation between Beijing and Moscow. The drone did not enter Japanese airspace and flew back towards continental Asia after Air Self-Defence fighters were scrambled to intercept it.

“This is the first drone that has been detected over the Sea of Japan, but Russia and China have conducted joint exercises with bombers several times in the past,” Iida said. “We also know that the Chinese air force is accelerating its operations with drones as they are aware of the usefulness of the technology, so we expect more similar incidents over the Sea of Japan.”

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