Former US naval intelligence officer Bath describes how his own area (before he was in it) was as responsible as Allied warships in the successful 1942-43 campaign against German U-boats known as the Battle of the Atlantic. He describes the cooperation at all levels, in all theaters of war, and at all points in the cycle from gathering through analysis to dissemination. He also considers the naval intelligence in the South Pacific, throughout highlighting the contributions of Britain and other Commonwealth states. Annotation copyrighted by Book News, Inc., Portland, OR

Operational intelligence, knowledge of the enemy’s location and actions, is crucial to effective military operations. The Admirals’ Advantage offers a revealing look at naval operational intelligence based on the findings of a classified Operational Intelligence (OPINTEL) Lessons-Learned Project and a 1998 Symposium at the Navy and Marine Corps Intelligence Training Center. Participants included senior intelligence and operational leaders who explored the evolution and significance of OPINTEL since World War II. Past and current practices were examined with inputs from fleet and shore commands and insights from interviews and correspondence with senior flag officers and intelligence professionals.

The Elusive Enemy explores the evolution of U.S. intelligence concerning the combat capabilities of the Imperial Japanese Navy and its air arm during the interwar period and the Pacific War. Ford contends that the US Navy could not accurately determine the fighting efficiency of Japan’s forces until it engaged them in actual battle conditions over an extended period. As the conflict progressed, the Americans were able to rely on a growing array of intelligence material, including POWs, captured documents, and specimens of captured enemy weapons. These sources often revealed valuable information on the characteristics of Japanese equipment, as well as some of the ideas and doctrines which governed how they carried out their operations. First-hand observations of the Japanese navy’s performance in battle were the most frequently used source of intelligence which enabled the US Navy to develop a more informed assessment of its opponent. Ship crews, along with US aviators, were tasked to collect information by making a thorough observation of how the Japanese fought. Action reports described how the Imperial fleet demonstrated a number of weaknesses, the most important of which was a shortage of modern equipment and, after 1942, diminished air power. Yet, he demonstrates how the Japanese remained a resilient enemy who could be defeated only when the Americans deployed sufficient equipment and used it in an appropriate manner. The Office of Naval Intelligence, as well as the intelligence services operating in the Pacific theater, thus had to assess a wide array of conflicting characteristics, and provide a balanced evaluation concerning the strengths and weaknesses of the Imperial navy. At the same time, a large part of the intelligence analysis was undertaken by commanders in the Pacific Fleet. Naval personnel and aircrews assessed the information gained through encounters with the enemy so that they could develop a set of methods whereby US forces were able defeat the Japanese without incurring excessive casualties and losses. The intelligence services, in turn, played an important role in disseminating the information on the most efficient tactics and weapons that could be used to defeat the Imperial Fleet. The Elusive Enemy aims to explain how American perceptions concerning the Japanese navy evolved during the conflict, with a particular focus on the role of intelligence. It also seeks to introduce a new perspective on the question as to why the U.S. Navy carried out its campaigns during the Pacific War in the manner that it did.

Collection of official documents and others on the annexation of the Northern Territory to South Australia.

To defeat your enemies you must know them well. In wartime, however, enemy codemakers make that task much more difficult. If you cannot break their codes and read their messages, you may discover too late the enemy's intentions. That's why codebreakers were considered such a crucial weapon during World War II. In Secret Messages, David Alvarez provides the first comprehensive analysis of the impact of decoded radio messages (signals intelligence) upon American foreign policy and strategy from 1930 to 1945. He presents the most complete account to date of the U.S. Army's top-secret Signal Intelligence Service (SIS): its creation, its struggles, its rapid wartime growth, and its contributions to the war effort. Alvarez reveals the inner workings of the SIS (precursor of today's NSA) and the codebreaking process and explains how SIS intercepted, deciphered, and analyzed encoded messages. From its headquarters at Arlington Hall outside Washington, D.C., SIS grew from a staff of four novice codebreakers to more than 10,000 people stationed around the globe, secretly monitoring the communications of not only the Axis powers but dozens of other governments as well and producing a flood of intelligence. Some of the SIS programs were so clandestine that even the White House—unaware of the agency's existence until 1937—was kept uninformed of them, such as the 1943 creation of a super-secret program to break Soviet codes and ciphers. In addition, Alvarez brings to light such previously classified operations as the interception of Vatican communications and a comprehensive program to decrypt the communications of our wartime allies. He also dispels many of the myths about the SIS's influence on American foreign policy, showing that the impact of special intelligence in the diplomatic sphere was limited by the indifference of the White House, constraints within the program itself, and rivalries with other agencies (like the FBI). Drawing upon military and intelligence archives, interviews with retired and active cryptanalysts, and over a million pages of cryptologic documents declassified in 1996, Alvarez illuminates this dark corner of intelligence history and expands our understanding of its role in and contributions to the American effort in World War II.

The importance of codebreaking and signals intelligence in the diplomacy and military operations of World War II is reflected in this study of the cryptanalysts, not only of the US and Britain, but all the Allies. The codebreaking war was a global conflict in which many countries were active. The contributions reveal that, for the Axis as well as the Allies, success in the signals war often depended upon close collaboration among alliance partners.

Naval Warfare 1919–45 is a comprehensive history of the war at sea from the end of the Great War to the end of World War Two. Showing the bewildering nature and complexity of the war facing those charged with fighting it around the world, this book ranges far and wide: sweeping across all naval theatres and those powers performing major, as well as minor, roles within them. Armed with the latest material from an extensive set of sources, Malcolm H. Murfett has written an absorbing as well as a comprehensive reference work. He demonstrates that superior equipment and the best intelligence, ominous power and systematic planning, vast finance and suitable training are often simply not enough in themselves to guarantee the successful outcome of a particular encounter at sea. Sometimes the narrow difference between victory and defeat hinges on those infinite variables: the individual’s performance under acute pressure and sheer luck. Naval Warfare 1919–45 is an analytical and interpretive study which is an accessible and fascinating read both for students and for interested members of the general public.