World War One in Colour

Killers of the Sea 1914-1918

Series 1 - Episode 4 Killers of the Sea 1914-1918

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Summary

Innovations in maritime warfare, including the development of dreadnought battleships and the increasing use of submarines. U-boats were deployed to devastating effect by the Germans, but may also have contributed to the country's eventual defeat by bringing America into the war on the side of the Allies. Narrated by Kenneth Branagh.
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