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.