World War II: Behind Closed Doors episode 4

World War II: Behind Closed Doors episode 4: The story of the first meeting of the 'Big Three', Churchill, Roosevelt and Stalin, at Tehran. Plus, the secret history of the Soviet attempt to cover up the mass murders at Katyn.
Last history post on HDclump.com:
https://hdclump.com/storm-over-europe-episode-2/
https://hdclump.com/storm-over-europe-episode-1-cimbrians-and-teutons/
https://hdclump.com/world-war-ii-behind-closed-doors-episode-3/
https://hdclump.com/world-war-ii-behind-closed-doors-episode-2/
https://hdclump.com/world-war-ii-behind-closed-doors-episode-1/
https://hdclump.com/kew-the-garden-that-changed-the-world/
https://hdclump.com/maps-power-plunder-and-possession-episode-3/
https://hdclump.com/maps-power-plunder-and-possession-episode-2/
https://hdclump.com/maps-power-plunder-and-possession-episode-1/
https://hdclump.com/secrets-from-the-sky-antonine-wall-episode-6/