Borders in a borderless world

Twenty-seven years after the fall of the Berlin Wall, 25 years after the adoption of the Schengen Convention and 26 years after the publication of Kenichi Ohmae’s The Borderless World, borders are back.

And this is true not only in Europe, where an acute crisis in Syria may be thought responsible for this development, but also in the United States, where the soaring political success of Donald Trump began with his promise to build a wall to stop migration into the United States.