500 years of the Navy – Half a Millennium of People, Sea and Conflicts - Season 1 Episode 2 The threat beneath the surface

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  • During the world wars, 175,000 mines were laid in the Baltic Sea and the North Sea. Around 30 percent is estimated to remain on the seabed. An in-depth look at the role of mines in history.
500 years of the Navy – Half a Millennium of People, Sea and Conflicts
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