How can the United States avoid a future surprise attack on the scale of 9/11 or Pearl Harbor, in an era when such devastating attacks can come not only from nation states, but also from terrorist groups or cyber enemies? Intelligence and Surprise Attack examines why surprise attacks often succeed even though, in most cases, warnings had been available beforehand. Erik J. Dahl challenges the conventional wisdom about intelligence failure, which holds that attacks succeed because important warnings get lost amid noise or because intelligence officials lack the imagination and collaboration to “connect the dots” of available information. Comparing cases of intelligence failure with intelligence success, Dahl finds that the key to success is not more imagination or better analysis, but better acquisition of precise, tactical-level intelligence combined with the presence of decision makers who are willing to listen to and act on the warnings they receive from their intelligence staff. The book offers a new understanding of classic cases of conventional and terrorist attacks such as Pearl Harbor, the Battle of Midway, and the bombings of US embassies in Kenya and Tanzania. The book also presents a comprehensive analysis of the intelligence picture before the 9/11 attacks, making use of new information available since the publication of the 9/11 Commission Report and challenging some of that report’s findings.

How can the United States avoid a future surprise attack on the scale of 9/11 or Pearl Harbor, in an era when such devastating attacks can come not only from nation states, but also from terrorist groups or cyber enemies? Intelligence and Surprise Attack examines why surprise attacks often succeed even though, in most cases, warnings had been available beforehand. Erik J. Dahl challenges the conventional wisdom about intelligence failure, which holds that attacks succeed because important warnings get lost amid noise or because intelligence officials lack the imagination and collaboration to “connect the dots” of available information. Comparing cases of intelligence failure with intelligence success, Dahl finds that the key to success is not more imagination or better analysis, but better acquisition of precise, tactical-level intelligence combined with the presence of decision makers who are willing to listen to and act on the warnings they receive from their intelligence staff. The book offers a new understanding of classic cases of conventional and terrorist attacks such as Pearl Harbor, the Battle of Midway, and the bombings of US embassies in Kenya and Tanzania. The book also presents a comprehensive analysis of the intelligence picture before the 9/11 attacks, making use of new information available since the publication of the 9/11 Commission Report and challenging some of that report’s findings.

How can the United States avoid a future surprise attack on the scale of 9/11 or Pearl Harbor, in an era when such devastating attacks can come not only from nation states, but also from terrorist groups or cyber enemies? Intelligence and Surprise Attack examines why surprise attacks often succeed even though, in most cases, warnings had been available beforehand. Erik J. Dahl challenges the conventional wisdom about intelligence failure.

Long before Germany's blitzkrieg swept the West, European leaders had received many signals of its imminence. Stalin, too, had abundant warning of German designs on Russia but believed that by avoiding "provocative" defensive measures he could avert the attack that finally came in June 1941. And the stories of the Japanese attack on Pearl Harbor, the Korean War, and three Arab-Israeli conflicts are replete with missed opportunities to react to unmistakable warnings. Richad K. Betts analyzes surprise attacks during the mid-twentieth century to illustrate his thesis: surprise attacks occur, not because intelligence services fail to warn, but because of the disbelief of political leaders. "Although the probability is low that the United States will fail to deter direct attack by the Soviet Union," Betts says, "the intensity of the threat warrants painstaking analysis of how to cope with it." His own investigation of the historical, psychological, political, diplomatic, and military aspects of his subject heightens understanding of why surprise attacks succeed and why victim nations fail to respond to warnings. In discussing current policy he focuses on the defense of Western Europe and applies the lessons of history to U.S. defense planning, offering detailed recommendations for changes in strategy. Obviously some of the potential dangers of military surprise cannot be prevented. The important thing, he emphasizes, is that "without forces that exceed requirements (the solution Moscow appears to have chosen), it is vital to ensure that what forces exist can be brought to bear when needed.

Ephraim Kam observes surprise attack through the eyes of its victim in order to understand the causes of the victim's failure to anticipate the coming of war. Emphasing the psychological aspect of warfare, Kam traces the behavior of the victim at various functional levels and from several points of view in order to examine the difficulties and mistakes that permit a nation to be taken by surprise. He argues that anticipation and prediction of a coming war are more complicated than any other issue of strategic estimation, involving such interdependent factors as analytical contradictions, judgemental biases, organizational obstacles, and political as well as military constraints. Surprise Attack: The Victim's Perspective offers implications based on the intelligence perspective, providing both historical background and scientific analysis that draws from the author's vast experience. The book is of utmost value to all those engaged in intelligence work, and to those whose operational or political responsibility brings them in touch with intelligence assessments and the need to authenticate and then adopt them or discount them. Similarly, the book will interest any reader intrigued by decision-making processes that influence individuals and nations at war, and sometimes even shape national destiny. --Ehud Barak, Former Prime Minister of Israel

Posner discusses the utter futilty of this reform act in a searing critique of the 9/11 Commission, its recommendations, Congress's role in making law, and the law's inability to do what it is intended to do.

This account of the Pearl Harbor attack denies that the lack of preparation resulted from military negligence or a political plot