"In the 21st Century there is a growing emphasis on warfare in the littoral zone and yet, in terms of academic writing, this history of coastal warfare is comparatively under-researched. This book, by examining S-Boat operations in English waters, and the successful defense of UK coastal convoys, through the development between 1940 and 1943 of a highly sophisticated, multi-weapon defense network (sea, air, and land), capable of harvesting and using real-time intelligence and electronic information, offers an unparalleled exploration of a key moment in the development of coastal warfare. The networks and processes developed to protect English waters between 1940 and 1943 prefigure many of the complexities of coastal warfare in the modern age"--