Trident nuclear submarine HMS Victorious
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Britain's nuclear submarines options to be published

16 July 2013 Last updated at 09:38 BST

Britain's nuclear armed submarines could be drastically reduced under plans outlined in a report on Tuesday.

A Lib Dem review of alternatives is set to favour cutting the Vanguard missile-carrying submarines from four to two.

The coalition has said that a decision will not be made until after the next general election.

Jonathan Beale reports.