Description:Trucks carrying rocket interceptors and control systems arrive at a port in Okinawa, as Japan puts its missile defences on alert. Japan will deploy radar-equipped destroyers carrying Standard Missile-3 interceptors in the Sea of Japan and the East China Sea. It also plans to position ground-based interceptors on some of its southern islands and in the Tokyo metropolitan area ahead of the North Korea missile launch on 12th-16th of April.(1:26)