HMS Vanguard
HMS Vengeance departs for Devonport prior to re-fit in 2012 off the coast of Largs, Scotland.
  • A test of the UK's nuclear deterrent failed for the second time in a row.
  • Britain's Ministry of Defence said "an anomaly" occurred during the firing of a Trident missile.
  • It's the latest in a series of embarrassing failings by the UK's Royal Navy. 

The test firing of a British nuclear missile from a Royal Navy submarine failed for the second time in a row in yet another humiliation for the Royal Navy.