Secrets of D-Day: The Great Invasion (Full Episode) | Drain the Oceans WW2

In the greatest amphibious invasion fleet ever assembled, 7,000 vessels and 250,000 men take the Nazis by surprise. By draining the ocean, we explain exactly how they did it. National Geographic is the world's premium destination for critically acclaimed storytelling around science and exploration. Discover amazing wildlife, ancient civilizations, hidden worlds, and the incredible wonders of our Earth.

Courtesy of National Geographic on YouTube. Watch on YouTube ↗

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