Siege warfare was the most common form of warfare in medieval Europe. In this edition of Black's History Week, Professor Jeremy Black, author of Forts and Fortifications and Siegecraft, talks about defending and capturing walled cities and castles with The Critic's deputy editor, Graham Stewart.

Don’t forget to subscribe to the podcast on Spotify and iTunes to ensure you never you never miss an episode.--Image: The siege of Jerusalem (Photo by: Leemage/Universal Images Group via Getty Images)

Music: Radetzky March by Human Symphony Orchestra (premiumbeat.com)