In this episode of Battleground '44, Saul speaks to former SAS troop commander Tom Petch - author of the book Speed, Aggression, Surprise: The Untold Secret Origins of the SAS. Together they discuss the role the SAS played in the second world war and in particular the role they played in operation Overlord. If you have any thoughts or questions, you can send them to - podbattleground@gmail.com Producer: James Hodgson X (Twitter): @PodBattleground Learn more about your ad choices. Visit podcastchoices.com/adchoices