Known as the Scourge of God, Attila the Hun was one of the greatest Barbarian rulers in history. Renowned for his brutality, sacking and pillaging the lands and cities he conquered, Attila became one of the most feared enemies of the Western and Eastern Roman Empires. But how did Attila rally his people to take on the might of Rome and why was he so successful? Rob Weinberg asks the big questions about this notorious figure to Professor Peter Heather of Kings College London.