Security ... think about it!
The first of class Astute nuclear powered attack submarine left BAE Systems’ shipyard at Barrow-in-Furness for the first stage of sea trials designed to prove its capability as the most formidable vessel of its kind ever operated by the Royal Navy.
The third Type-214 submarine was named after Ahn Jung-geun, a Korean independence fighter who assassinated Japan's first resident general, Hirobumi Ito, in 1909 in retaliation for Japan's annexation of Korea. The diesel-electric submarine, built by Hyundai Heavy Industries under technical cooperation with Germany's Howaldtswerke-Deutsche Werft (HDW), is expected to play a key role in sea denial to North Korean and other hostile forces, and anti-submarine warfare, Navy officials said.