The lesson from tiny Wallonia – there is a way to prevent hard Brexit | Simon Jenkins

The Belgian region forced a giant EU scheme to unravel. Given the chance, Wales and Scotland could do the same

The fury subsides. The wounds heal. But as the trumpets and the drums depart, the same Brexit squabbles live on. What do we mean to do, really, about immigration, protectionism, sovereignty and trade?

Cut to Wallonia, a desperate corner of Europe. Its collapsed heavy industry lies ruined in a hilly landscape. Its politics are equally outdated, socialists battling Marxists. Yet Wallonia...