This biography of the Civil War officer who established the Union’s intelligence network “is an absolute treasure trove of . . . operational information” (Military History Magazine). In this biography of George H. Sharpe, acclaimed historian Peter Tsouras recounts the significance of Sharpe’s grand contribution to the Union war effort: the creation of an all-source intelligence operation known as the Bureau of Military Information. Tsouras contends that, under Sharpe’s leadership, the BMI was the combat multiplier that ultimately brought the Union to victory. By early 1863, in the two-and-half months before the Chancellorsville Campaign, Sharpe had compiled a thorough and accurate Intelligence Preparation of the Battlefield. His reports identified every brigade and its location in Lee’s army, provided an order-of-battle down to the regiment level, and a complete analysis of the railroad. Beyond this, Sharpe assembled a staff of thirty to fifty scouts and support personnel to run the military intelligence operation of the Army of the Potomac. He later supported Grant’s armies operating against Richmond during the Siege of Petersburg, where the BMI played a fundamental role in the victory. After the war, Sharpe became one of the most powerful Republican politicians in New York State, had close friendships with presidents Grant and Arthur, and was a champion of African American civil rights. With a wealth of newly discovered primary documents, including the diaries of Sharpe’s deputy John C. Babcock, Tsouras sheds significant new light on the evolution of Civil War intelligence reporting.

In World War I and the Origins of U.S. Military Intelligence, military historian James L. Gilbert provides an authoritative overview of the birth of modern Army intelligence. Following the natural division of the intelligence war, which was fought on both the home front and overseas, Gilbert traces the development and use of intelligence and counterintelligence through the eyes of their principal architects: General Dennis E. Nolan and Colonel Ralph Van Deman. Gilbert explores how on the home front, US Army counterintelligence faced both internal and external threats that began with the Army’s growing concerns over the loyalty of resident aliens who were being drafted into the ranks and soon evolved into the rooting out of enemy saboteurs and spies intent on doing great harm to America’s war effort. To achieve their goals, counterintelligence personnel relied upon major strides in the areas of code breaking and detection of secret inks. Overseas, the intelligence effort proved far more extensive in terms of resources and missions, even reaching into nearby neutral countries. Intelligence within the American Expeditionary Forces was heavily indebted to its Allied counterparts who not only provided an organizational blueprint but also veteran instructors and equipment needed to train newly arriving intelligence specialists. Rapid advances by American intelligence were also made possible by the appointment of competent leaders and the recruitment of highly motivated and skilled personnel; likewise, the Army’s decision to assign the bulk of its linguists to support intelligence proved critical. World War I would witness the linkage between intelligence and emerging technologies—from the use of cameras in aircraft to the intercept of enemy radio transmissions. Equally significant was the introduction of new intelligence disciplines—from exploitation of captured equipment to the translation of enemy documents. These and other functions that emerged from World War I would continue to the present to provide military intelligence with the essential tools necessary to support the Army and the nation. World War I and the Origins of U.S. Military Intelligence is ideal not only for students and scholars of military history and World War I, but will also appeal to any reader interested in how modern intelligence operations first evolved.

'A cracking good read... I will recommend this book to anyone' - Professor Richard Holmes, CBE 'The Falklands, Yom Kippur, Tet and Pearl Harbor? Avoidable intelligence blunders or much worse? Altogether a compelling read from someone who knows the business' - Nigel West This book is a professional military-intelligence officer's - and controversial insider's - view of some of the greatest intelligence blunders of recent history. It includes the serious developments in government misuse of intelligence in the US-led coalition's 2003 war with Iraq, as well as failures of intelligence in Ukraine following Russia's invasion in February 2022. Colonel John Hughes-Wilson analyses not just the events that conspire to cause disaster, but why crucial intelligence is so often ignored, misunderstood or spun by politicians and seasoned generals alike. This book analyses: how Hitler's intelligence staff misled him in a bid to outfox their Nazi Party rivals; the bureaucratic bungling behind Pearl Harbor; how in-fighting within American intelligence ensured they were taken off guard by the Viet Cong's 1968 Tet Offensive; how overconfidence, political interference and deception facilitated Egypt and Syria's 1973 surprise attack on Israel; why a handful of marines and a London taxicab were all Britain had to defend the Falklands; the mistaken intelligence that allowed Saddam Hussein to remain in power until the second Iraq War of 2003; the truth behind the US failure to run a terrorist warning system before the 9/11 WTC bombing; and how governments are increasingly pressurising intelligence agencies to 'spin' a party-political line.

Describes the activities of the Army's spycatching unit from the early days of World War II to the Cold War era, when it was merged with the U.S. Army Intelligence Corps

Intelligence is a key element of operations, enabling commanders to successfully plan and conduct operations. It enables them to win decisive battles and it helps them to identify and attack high value targets. Intelligence is an important part of every military decision. Military intelligence is the knowledge of a possible or actual enemy or area of operation. It encompasses combat intelligence, strategic intelligence, and counterintelligence, and is essential to the preparation and execution of military policies, plans, and operations. The objective of military intelligence is to minimize the uncertainties of the affects of enemy, weather and terrain on operations. The decisive factor in warfare has often been the utilization of good intelligence. A glimpse of how this has been done in the Canadian Forces is contained in this reference book on the Intelligence Branch history.

“A treasure trove for historians . . . A real addition to Civil War history” (Kirkus Reviews, starred review). At the end of the American Civil War, most of the intelligence records disappeared—remaining hidden for over a century. As a result, little has been understood about the role of espionage and other intelligence sources, from balloonists to signalmen with their telescopes. When, at the National Archives, Edwin C. Fishel discovered long-forgotten documents—the operational files of the Army of the Potomac’s Bureau of Military Information—he had the makings of this, the first book to thoroughly and authentically examine the impact of intelligence on the Civil War, providing a new perspective on this period in history. Drawing on these papers as well as over a thousand pages of reports by General McClellan’s intelligence chief, the detective Allan Pinkerton, and other information, he created an account of the Civil War that “breaks much new ground” (The New York Times). “The former chief intelligence reporter for the National Security Agency brings his professional expertise to bear in this detailed analysis, which makes a notable contribution to Civil War literature as the first major study to present the war’s campaigns from an intelligence perspective. Focusing on intelligence work in the eastern theater, 1861–1863, Fishel plays down the role of individual agents like James Longstreet’s famous ‘scout,’ Henry Harrison, concentrating instead on the increasingly sophisticated development of intelligence systems by both sides. . . . Expertly written, organized and researched.” —Publishers Weekly “Fundamentally changes our picture of the secret service in the Civil War.” —The Washington Post

"This book tells the story of an unusual group of American soldiers in World War II, second-generation Japanese Americans (Nisei) who served as interpreters and translators in the Military Intelligence Service."--Preface.

The story of Churchill's personal weapons development department, staffed by ingenious boffins, who developed numerous innovative weapons that helped win the war.

The first full account of Hitler's extensive intelligence network-and the dramatic story of how Germany lost the battle of the secret services in World War II.