A Dad’s Army-style Brexit looms. ‘Don’t panic!’ | Anne Perkins

Sentimental versions of our island story are a handicap when it comes to deciding Britain’s futureSometimes history is made by surprise. As with the fall of the Berlin Wall, it’s only afterwards that how the event came about becomes clear. Sometimes it’s blindingly obvious what’s coming, but you can’t see how to stop it.No one, today, can miss the inexorable unfolding across the headlines and social media timelines of a transformed relationship between Britain and E