Europe, the richest economic area in the world, faces unprecedented challenges: a protectionist US administration, Russian interventions, a Chinese leader who has defied succession planning, and the parliamentary success of the far-right in Germany, Italy and Austria. And then there’s Brexit. Something must be done. But what? And how? And by whom? The distinguished diplomat Gourdault-Montagne is now Secretary General of the French Foreign Ministry, Mountfield is a British QC, Schama is an historian. Chaired by the BBC’s Europe Editor.