![The History of the Twentieth Century show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/076/806/small/the-history-of-the-twentieth-century.jpg)
Summary: The fighting continued at Verdun as the Russians prepare an offensive of their own to relieve the pressure on France. A German U-boat mistakenly sinks a passenger ferry in the English Channel, triggering another controversy over submarine rules of engagement.