On a sweltering day in August 1906 U-1, or Unterseeboot 1, meaning underwater boat, was lifted into Kiel's waters for trials; 100 hundred years later Kiel still

The submarine emerged as a serious weapons system during the First World War (1914 - 1918). During that conflict Germany with its unrestricted submarine warfare

A Washington Post Notable Book In March 1941, after a year of devastating U-boat attacks, the British War Cabinet turned to an intensely private, bohemian physi

An acclaimed military historian examines the vital role of British naval intelligence from the mid-nineteenth century to the end of the Cold War. In this compre