Japan will deploy air-defence missiles on the remote island of Yonaguni by 2031, in a major step to reinforce its security presence near Taiwan. The island sits at the far western edge of Japan and is closer to Taiwan than to the Japanese mainland, making it a key location in the region’s shifting military balance.
The government says the new missile unit will help defend its territory and improve its ability to monitor and respond to threats. The plan is part of a wider strategy to strengthen Japan’s southwestern island chain, where military installations have been expanding in recent years.
Tokyo’s decision comes at a time of growing concern about China’s military activity and the future of Taiwan. Japanese leaders have warned that instability in the Taiwan Strait would directly affect Japan’s security, prompting calls for stronger defences.
Officials stress that the deployment is meant to deter attacks, not provoke conflict. By building up its capabilities, Japan hopes to make any potential aggression less likely.
However, the move is expected to draw criticism from China, which views such military steps as a challenge to regional stability. Beijing considers Taiwan its own territory, while Taiwan maintains it is self-governed.
On Yonaguni itself, the plan has sparked debate. Supporters say the military presence brings jobs, infrastructure and a sense of protection. Opponents fear the quiet island could become a target if tensions escalate.
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