Winston Churchill famously claimed that the submarine war in the Atlantic was the only campaign of the Second World War that really frightened him. If the lifeline to north America had been cut, Britain would never have survived; there could have been no build-up of US and Commonwealth forces, no D-Day landings, and no victory in western Europe. Furthermore, the battle raged from the first day of the war until the final German surrender, making it the longest and arguably hardest-fought campaign of the whole war. The ships, technology and tactics employed by the Allies form the subject of this book. Beginning with the lessons apparently learned from the First World War, the author outlines inter-war developments in technology and training, and describes the later preparations for the second global conflict. When the war came the balance of advantage was to see-saw between U-boats and escorts, with new weapons and sensors introduced at a rapid rate. For the defending navies, the prime requirement was numbers, and the most pressing problem was to improve capability without sacrificing simplicity and speed of construction. The author analyses the resulting designs of sloops, frigates, corvettes and destroyer escorts and attempts to determine their relative effectiveness.

Often overlooked as a naval power of WWII, Italy's Regia Marina was, upon the declaration of war against France, the fourth largest navy in the world. Despite its numbers, the Italian fleet was made up of largely obsolete vessels, none being equipped with radar, and had a reputation for having inadequately-trained crews. Added to these drawbacks, the Italian commanders did not enjoy the discretion of command at sea that their counterparts in the service of other nations did, being directed closely by the Supermarina (Italian Naval Headquarters). Despite these obstacles, and the heavy losses inflicted upon the fleet by the Royal Navy while in harbour at Taranto, the battleships of the Italian Navy enjoyed a good reputation for being well-designed, and served with courage and determination at Punto Stilo/Calabria, Sirte, Cape Spartivento, and Cape Matapan. Mark Stille details, with the aid of many stunning photographs, including several from the Italian Navy's own archives, the battleships of one of the forgotten navies of WWII.

When first published in 1995, this book was hailed as an absolutely indispensable contribution to the history of the Pacific War. Drawing heavily from Japanese sources and American wartime intercepts of secret Japanese radio messages, a noted American naval historian and a Japanese mariner painstakingly recorded and evaluated a diverse array of material about Japan's submarines in World War II. The study begins with the development of the first Japanese 103-ton Holland-type submergible craft in 1905 and continues through the 1945 surrender of the largest submarine in the world at the time, the 5300-ton I-400 class that carried three airplanes. Submarine weapons, equipment, personnel, and shore support systems are discussed first in the context of Japanese naval preparations for war and later during the war. Both successes and missed opportunities are analyzed in operations ranging from the California coast through the Pacific and Indian Oceans to the coast of German-occupied France. Appendixes include lists of Japanese submarine losses and the biographies of key Japanese submarine officers. Rare illustrations and specifically commissioned operational maps enhance the text.