Japan coast guard https://koputokiryo.com/%e3%80%90%e8%8b%b1%e8%aa%9e%e3%81%a7%e6%9c%80%e6%96%b0%e8%a8%98%e4%ba%8b%e3%82%92%e8%aa%ad%e3%81%bf%e4%b8%8b%e3%81%97%e3%80%91ai%e7%9b%a3%e8%a6%96%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%8c%e4%b8%8d/japan-coast-guard/