Trident submarines a regressive concept
Historic terms like "the Enlightenment" imply an evolution and advancement of singular human minds to suggest better ways of managing forms and matter for the benefit of all.
This generational increase in individual mind power enables us to continue upon the path of improvement. However, there will always be those who think we've reached the pinnacle of development. Such people are a danger to the rest of us, because they are likely to make decisions which impede our progress and the greater their power, the more retrograde the effect. What would be more regressive to human improvement than a nuclear war? Such a war could be started from a missile fired from a British Trident submarine.
Where would "the Enlightenment" be in that?