Just finished episode 20. I hope this wins awards and stays on Sounds for a long time. Excellent use of archive recordings.
I don't think I'd ever heard before about the aptly codenamed Operation Unthinkable. https://en.wikipedia.org/wiki/Operation_Unthinkable Churchill wanted to launch a surprise attack on the Soviets as soon as possible after VE Day to prevent the annexation of Eastern Europe, especially Poland. He thought the Allied forces could be augmented by some of the German forces they'd just conquered.
Fortunately, the chiefs of staff strongly advised against this and then of course he lost the 1945 election, so that was consigned to the category of 'what if'. The entire harebrained scheme depended on the attack being a surprise, and it is now known that Guy Burgess had told the Soviets all about it at the time, so it would have been a disaster.