By 1914 the submarine was not a new weapon, having first been used 150 years earlier. By the start of WW1 all the major ...

Germany soon announced it would engage in unrestricted submarine warfare. Namely, German U-boats could sink virtually any vessel without warning. This policy would ultimately spell disaster for ...

Learn more about a U.S. Navy IDIQ contract awarded to Lockheed to support the development and production of AN/SQQ-89A(V)15 ...

Germany's unrestricted submarine warfare, however, was an intolerable affront to America's dignity and honor. At the start of 1917, British intelligence intercepted the Zimmerman telegram ...

A real threat to Britain's food supplies and Britain’s ability to continue the war effort came in 1916 when a new campaign of 'unrestricted submarine warfare' began with deadly effect ...