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Hitler's rise to power led to the slaughter of millions as concentration camps revealed the Nazi empire's true evil. Rarely-seen archive recounts the atrocities.
The Allies' bombing of the German city of Dresden was one of the most controversial of WWII. Rare archive footage tells the story as it's never seen before.
The final hours of WWII changed the course of history with President Truman's fateful decision to use the deadliest weapon ever created: the atom bomb.