Built at strategic points, and fitted with impressive fortifications and ingenious systems to counter attacks, fortresses are thought to be impenetrable. And yet, certain skillful warlords have successfully stormed them. How did they manage this?
Direction: Thomas Risch, Stéphane Jacques, Laurent Portes
Production: ZED for RMC Découverte and CuriosityStream, Bonum Production & Histoire TV (Alésia)