Completely flummoxed by Mr Arbuthnot's words quoted from Hansard in Orac's post No 8 – Tried to get me 'ed around the idea of the Vigilant T.1 conducting 'sub-strategic' missions - Well it was a good lunch with the Major
. Once I'd worked out Mr Arbuthnot was actually referring to a boat, I perked up, had a quick shufti at Orac's link to the Trident Modernisation (38 pp – full read later) and found this site – which helped me with 'sub-strategic' and might help the OP's task.
United Kingdom Nuclear Forces
BTW fantaman – will you be talking to work colleagues or the W.I or are you on a learned study course ?
LFH