FDR and Winston Churchill spent 113 days in each others' company during WWII. FDR even saw Churchill naked. But how close were the pair in personality and in strategy? How did the personal relationship between these two giants of history shape the war? And why, in the end, did Churchill see it as a failure?

Dan Snow, of our sister podcast 'Dan Snow's History Hit', joins Don to talk about the most 'Special Relationship' of all.

Produced by Freddy Chick. Edited by Aidan Lonergan. Senior Producer is Charlotte Long.

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All music from Epidemic Sounds.

American History Hit is a History Hit podcast.

In the 19th Century, a war on the boundary between Europe and Asia had an unexpected effect. It caused the American public to re-examine one of the terms with which they described race: Caucasian.

Don Wildman is joined for this episode by the award-winning art historian Sarah Lewis. They explore how the term Caucasian came to be associated with whiteness, and how photography was fundamental to unpicking this myth.

Sarah is the John L. Loeb Associate Professor of the Humanities and Associate Professor of African and African American Studies at Harvard University. She is also the founder of the Vision & Justice initiative and author of the book discussed here: 'The Unseen Truth: When Race Changed Sight in America'.

Produced and edited by Sophie Gee. Senior Producer was Charlotte Long.

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They say that the enemy of your enemy is your friend, but did that apply to President Franklin D. Roosevelt and his Soviet counterpart, Joseph Stalin, during the Second World War?

Despite their ideological differences, the United States and the USSR joined ranks on January 1, 1942, attacked by Japan and Nazi Germany, respectively. Their leaders would meet for the first time almost two years later at the 1943 Tehran conference.

Don is joined by Phillips Payson O’Brien, Professor of Strategic Studies at St Andrews. Phillips is the author of 'The Strategists: Churchill, Stalin, Roosevelt, Mussolini and Hitler – How War Made Them, And How They Made War'.

Produced by Freddy Chick. Edited by Aidan Lonergan. Senior Producer is Charlotte Long.

Sign up to History Hit for hundreds of hours of original documentaries, with a new release every week and ad-free podcasts. Sign up at https://www.historyhit.com/subscribe.

You can take part in our listener survey here.

All music from Epidemic Sounds.

American History Hit is a History Hit podcast.