In August 1918, the battle of Amiens brought the German army's 'black day' and the beginning of the end of the First World War.
But what happened at Amiens? How were US troops involved in this battle? And how is the battle remembered today?
In this episode, Don is joined by Dan Snow to talk about the American troops and their parts in the offensives at Hamel and Amiens.
Produced by Sophie Gee and James Hickmann.
Editing and sound design by Siobhan Dale.
Senior Producer: Charlotte Long.