Japan to deploy surface-to-air missiles on Yonaguni island by March 2031

Key facts

• Japan plans to deploy medium-range surface-to-air missiles to its remote western island of Yonaguni by March 2031.
• Yonaguni island is located approximately 110 kilometres from the shores of Taiwan.
• The Japanese-made missile system features a range of 50 kilometres, 360-degree capability, and the ability to track up to 100 targets simultaneously.
• An electronic warfare unit designed to disrupt enemy communications and radar is scheduled for establishment on the island in fiscal year 2026.
• The island currently hosts a coastal surveillance unit staffed by approximately 160 members of the Japan Self-Defence Force (JSDF).
• Defence Minister Shinjiro Koizumi confirmed the deployment timeline following export curbs imposed by China on 20 Japanese entities.
• The missile system is capable of engaging up to 12 targets at once and intercepting incoming aircraft and missiles.