US to deploy NMESIS anti-ship system on Japanese island closest to Taiwan

Key facts

• The US will deploy its NMESIS anti-ship missile system to Yonaguni Island, Japan.
• The deployment will occur during joint military exercises with Japan starting October 19.
• Yonaguni Island is Japan's westernmost island and is located approximately 110 kilometers from Taiwan.
• NMESIS can mount anti-ship missiles with a range of over 180 kilometers on remotely operated unmanned vehicles.
• Japan's Ground Self-Defense Force will also deploy ground-based anti-ship missiles with a range of over 100 kilometers.
• This is the first time either system will be deployed to Yonaguni Island.

The United States is preparing to deploy its Navy-Marine Expeditionary Ship Interdiction System (NMESIS) to Yonaguni Island, Japan's westernmost island situated closest to Taiwan. This deployment, slated to occur during joint military exercises with Japan beginning October 19, marks an unprecedented move in the region.

The NMESIS system, capable of mounting anti-ship missiles with a range exceeding 180 kilometers on remotely operated unmanned vehicles, will be deployed alongside Japan's own ground-based anti-ship missiles, which have a range of over 100 kilometers. This joint exercise represents the first time either system will be stationed on Yonaguni.

Sources indicate that the deployment is intended to strengthen regional deterrence, with China's growing assertiveness around Taiwan in mind. Yonaguni's proximity to Taiwan, approximately 110 kilometers away, positions it as a potential forward base from which these missile systems could threaten Chinese naval vessels operating in the vicinity of Taiwan in the event of a conflict.

Chinese military experts have voiced concerns that the move could escalate tensions and increase the risk of miscalculation, potentially reinforcing perceptions of Japanese and US intervention in the Taiwan issue. They also warned that forces stationed on Yonaguni could become early targets in a conflict due to the island's limited strategic depth, making weapon systems vulnerable to reconnaissance and precision strikes.