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Killer U-Boats

Shedding light on German U-Boats, the world’s first stealth weapons.

English français Deutsch español 한국어
  • Originally Aired June 17, 2019
  • Runtime 60 minutes
  • Content Rating United States of America TV-PG
  • Network National Geographic
  • Created May 12, 2021 by
    warlin_ct
  • Modified September 19, 2023 by
    kyuhyung78