Combined ICBM and Hunter Killer Sub?

I agree entirely, but the fact remains when the UK and France do collaborate we can produce some extraordinary stuff - Jaguar and Concord(e) are just two.

I doubt we ever would go with a joint nuke plan as the only reason we keep ours is because the French have them (and vice-versa) but it seems very bad business to me to let the seller know in advance that you're only ever going to buy from them and have no secondary option.

I think the UK and France are well aware of each others' failings - Perfidious Albion?