This Week on History Happy Hour: The legendary ‘Red Devils’, British Airborne troops, were created at Winston Churchill’s instigation in June 1940. They started with just 500 men and grew into three 10,000-strong airborne divisions.

British military historian Saul David returns this encore episode of History Happy Hour to talk about book Sky Warriors: British Airborne Forces in the Second World War. We’ll talk about their role in iconic operations such as Pegasus Bridge, Arnhem Bridge, and Operation Varsity, the biggest parachute drop of World War II.

This Week on History Happy Hour: The story of British scientists who developed cutting-edge underwater science that helped make D-Day possible.

Chris and Rick welcome Rachel Lance, author of Chamber Divers. A long-classified tale of eccentric researchers who conducted life threatening experiments on themselves to pioneer the safe use of miniature submarines and breathing apparatuses used to reconnoiter the D-Day beaches.

This Week on History Happy Hour: One thousand years ago, Native American cities in North America rivaled urban centers around the world in size and scope. But has the surprising history of Native Americans has been obscured by historians’ intent on minimizing the role of their still thriving societies?

Chris and Rick talk about one thousand years of Native American history with Kathleen DuVal, author of Native Nations: A Millennium in North America,” a book The Wall Street Journal calls “An essential American history.”