But in fact support for Trident is a minority view.

"Thirty-three per cent of over-35-year-olds believe the UK's weapon system should be renewed to maintain its size and capacity. Support among 18-35s is even lower at 19%.

Only 38% agree with the proposition that nuclear weapons protect countries that possess them from modern threats such as terrorism, and just 6% believe spending on defence should be the government's priority over the next 10 years."

That was the finding of a 2014 poll reported here