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LARGS, SCOTLAND - FEBRUARY 27:  In this handout image provided by MoD Crown Copyright, HMS Vengeance departs for Devonport prior to re-fit on Ferbruary 27, 2012 off the coast of Largs, Scotland. The UK Ministry of Defence has awarded UK's leading naval support business Babcock, on March 25, 2012, with a contract to commence the planning phase for the ?350 million GBP refit of Trident ballistic missile submarine HMS Vengeance, which will be undertaken at their Devonport Royal Dockyard. The project to upgrade and refuel the nuclear submarine will safeguard 2,000 UK jobs and will take around three and a half years. River Tamar shipping was suspended when the the 150m-long, 15,900-tonne submarine HMS Vengeance travelled to the Devonport Dockyard ahead of the scheduled refit on March 2, 2012, arriving amid concerns without a signed contract for the refit.  HMS Vengeance will be the last of four Vanguard class submarines to undergo a Lond Overhaul Period and Refuel LOP(R) at Davernport that will commence once HMS Vigilant leaves Devonport on completion of her LOP(R) in 2012. Mandatory Credit: (Photo by Andrew Linnett/MoD Crown Copyright via Getty Images)
LARGS, SCOTLAND - FEBRUARY 27:  In this handout image provided by MoD Crown Copyright, HMS Vengeance departs for Devonport prior to re-fit on Ferbruary 27, 2012 off the coast of Largs, Scotland. The UK Ministry of Defence has awarded UK's leading naval support business Babcock, on March 25, 2012, with a contract to commence the planning phase for the ?350 million GBP refit of Trident ballistic missile submarine HMS Vengeance, which will be undertaken at their Devonport Royal Dockyard. The project to upgrade and refuel the nuclear submarine will safeguard 2,000 UK jobs and will take around three and a half years. River Tamar shipping was suspended when the the 150m-long, 15,900-tonne submarine HMS Vengeance travelled to the Devonport Dockyard ahead of the scheduled refit on March 2, 2012, arriving amid concerns without a signed contract for the refit.  HMS Vengeance will be the last of four Vanguard class submarines to undergo a Lond Overhaul Period and Refuel LOP(R) at Davernport that will commence once HMS Vigilant leaves Devonport on completion of her LOP(R) in 2012. Mandatory Credit: (Photo by Andrew Linnett/MoD Crown Copyright via Getty Images)

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US official confirms Trident missile failure

A British nuclear missile test ended in failure off the coast of Florida in 2016, a US defense official with direct knowledge of the incident confirmed to CNN.

US official confirms Trident missile failure

A British nuclear missile test ended in failure off the coast of Florida in 2016, a US defense official with direct knowledge of the incident confirmed to CNN.