RMS Lusitania
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RMS Lusitania was a British ocean liner launched by the Cunard Line in 1906 as a Royal Mail Ship. She was the world's largest passenger ship until the completion of her running mate Mauretania three m
RMS Lusitania arriving in New York City in 1907
Lusitania, prior to her launch
RMS Lusitania – built 1904–1906
Lusitania unloading Christmas mail to a post office boat
U-boat campaign
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The U-boat campaign from 1914 to 1918 was the World War I naval campaign fought by German U-boats against the trade routes of the Allies, largely in the seas around the British Isles and in the Medite
A German postcard depicting the U-boat SM U-20 sinking RMS Lusitania
German U-boat U-14
General warning issued by Imperial German Embassy, appearing coincidentally alongside an advert for the Lusitania, published a day before the ship sailed.
Claimed effectiveness: Artist's conception of a U-boat commander's periscope view of a merchant ship in dazzle camouflage (left) and the same ship uncamouflaged (right), Encyclopædia Britannica, 1922. The conspicuous markings obscure the ship's heading.