6 Season
36 Episode
Nazi Megastructures - Season 3 Episode 4 Hitler's Killer Subs
Hitler planned a submarine to outperform all others. The Type 21 was the world's most advanced submarine: Hitler's sea-faring super weapon.
- Year : 2019
- Country : United Kingdom, United States of America
- Genre : Documentary, War & Politics
- Studio : National Geographic Channel
- Keyword : nazi, military weapons
- Director :
- Cast : Richard Lintern