Terrifying Polish movie, Katyn
Wow I just looked that up, I had NO idea about that!
https://www.imdb.com/title/tt0879843/
22,000!!!
https://en.wikipedia.org/wiki/Katyn_massacre
Great movie. Until I watched it, I’d never known about the massacre. It was another one of those WWII era incidents that the Soviet Union denied, until they were forced to admit to it decades later.