The Royal Navy has nine nuclear-powered submarines. Four of them are the Vanguard class, tasked with providing the nation’s ...
In September 1914, a single German U-boat ventured into the North Sea. Lieutenant Otto Weddigen’s U-9 slipped past patrols ...
In early February 1948, a strange and urgent morse-code SOS, three dots, three dashes and three dots again, came from a Dutch ...
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