British Naval Intelligence through the Twentieth Century

When published in 2020 it offered the first comprehensive account of how intelligence influenced and sustained British naval power from the mid nineteenth century through to the end of the Cold War. The book describes why and how intelligence was collected and assesses its real impact on policy and operations. It confirms that naval intelligence was critical to Britain's survival and ultimate victory in the two World Wars but significantly reappraises its role, highlighting the importance of communications intelligence to an effective blockade in the First, and according Ultra less dominance compared to other sources in the Second. It reveals that coverage of Germany before 1914 and of the three Axis powers in the interwar period was more comprehensive and effective than previously suggested; and while British power declined rapidly after 1945, the book shows how intelligence helped the Royal Navy to remain a significant global force for the rest of the twentieth century, and in submarine warfare, especially in the second half of the Cold War. This compelling history of naval intelligence, now in a new and revised paperback edition, will appeal to a wide body of naval historians and enthusiasts interested in the crucial part it played on naval policy and operations. **WINNER** of the Mountbatten Maritime Literary Award, 2021**Highly Commended** by the Society for Nautical Research in their award for the 2021 Anderson Medal . Named as the Naval Review’s **Book of the Quarter.**'**British Naval Intelligence** is an unprecendented and important addition to our knowledge.' Professor Gwythian Prins'An original and masterful history of British naval intelligence. Remarkably valuable, and in many ways the definitive, addition to the serious study of naval history.' Captain Stephen Maffeo'A remarkable book which for the first time puts intelligence in its place and tells us what happened and why. For any modern naval officer, gives a systematic picture of naval warfare in a way not done by anybody else.' Rear Admiral James Goldrick