To ask the Secretary of State for Defence if he will make an assessment of the evidence submitted to the Defence Select Committee in its inquiry into the future of the UK’s strategic nuclear deterrent by Professor Richard Garwin, on the timetable for replacement of Trident submarines. (135012)

The rationale for the timetable for the replacement of the Vanguard-class submarines was set out in the White Paper: The Future of the United Kingdom’s Nuclear Deterrent (Cm 6994) published on 4 December 2006. The Ministry of Defence provided further detail on the expected life of the Vanguard-class in a letter to the Defence Select Committee dated 1 February 2007, which the Committee published in Volume II of its Ninth Report of Session 2006-07 (Ev 122) on 27 February 2007. I also covered this issue in detail during my evidence session with the Committee on 6 February, a transcript of which was published in the same Report (Ev 57).