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PM: North Korea is threat to UK

David Cameron has warned it would be "foolish" to consider abandoning its Trident deterrent because the UK faces an increased threat of a nuclear attack from regimes including North Korea. He claimed rockets from Pyongyang could hit Britain.

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What is Trident?

  • Trident is a sea-based ballistic missile system that comprises the UK’s nuclear deterrent.
  • It can be fired at targets up to 7000 miles away.
  • At its fastest, each missile can travel at over 13,000 miles per hour.
  • Four Vanguard nuclear submarines can carry 16 missiles each.
  • Their power is estimated as the equivalent of eight Hiroshima nuclear bombs.
  • From 2028, the Vanguards will be replaced by Successor submarines.
  • The submarine replacement is estimated to cost between £15bn and £25bn.

Source: Royal Navy and Ministry of Defence

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