They knew that at any moment, German U-boats could descend upon them ... up along the coast of north Wales almost a month after the sinking. They used a technique called numerical modeling ...

The sinking of the passenger liner Lusitania by a German U-boat helped to shatter that hope. Woodrow Wilson, 1918. Courtesy: Library of Congress Wilson demanded an apology from Germany and ...

By the war’s end in November 1918, these mysterious decoys had fought around 70 engagements, sinking no more ... young lieutenants, U-boat crews operated under the German tradition of ...

U-boat from which codebooks and valuable cryptographic materials were recovered before sinking, facilitating, in late 1942, the second major Allied breakthrough in reading German U-boat ...

The U249, which was the first German U-boat to arrive in UK waters, came into Weymouth Bay and surrendered. The commanding officer went on-board with his crew and took command. The first things ...