In the eyes of history, Japanese intelligence in World War II has fared very poorly. However, these historians have most often concentrated on the later years of the war, when Japan was fighting a multi-front war against numerous opponents. In this groundbreaking new study, Japanese scholar Ken Kotani re-examines the Japanese Intelligence department, beginning with the early phase of the war. He points out that without the intelligence gathered by the Japanese Army and Navy they would have been unable to achieve their long string of victories against the forces of Russia, China, and Great Britain. Notable in these early campaigns were the successful strikes against both Singapore and Pearl Harbor. Yet as these victories expanded the sphere of Japanese control, they also made it harder for the intelligence services to gather accurate information about their growing list of adversaries. At the battle of Midway in 1942, Japanese intelligence suffered its worst mishap when the Americans broke their code and tricked the Japanese into revealing the target of their attack. It was a mistake from which they would never recover. As the military might of Japan was forced to retreat and her forces deteriorated, so too did her intelligence services.

"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 prewar history of the Japanese intelligence community demonstrates how having power over much, but insight into little can have devastating consequences. Its postwar history—one of limited Japanese power despite growing insight—has also been problematic for national security. In Special Duty Richard J. Samuels dissects the fascinating history of the intelligence community in Japan. Looking at the impact of shifts in the strategic environment, technological change, and past failures, he probes the reasons why Japan has endured such a roller-coaster ride when it comes to intelligence gathering and analysis, and concludes that the ups and downs of the past century—combined with growing uncertainties in the regional security environment—have convinced Japanese leaders of the critical importance of striking balance between power and insight. Using examples of excessive hubris and debilitating bureaucratic competition before the Asia-Pacific War, the unavoidable dependence on US assets and popular sensitivity to security issues after World War II, and the tardy adoption of image-processing and cyber technologies, Samuels' bold book highlights the century-long history of Japan's struggles to develop a fully functioning and effective intelligence capability, and makes clear that Japanese leaders have begun to reinvent their nation's intelligence community.

The most authoritative and revealing examination yet of the way intelligence--of all kinds--was instrumental in defeating Japan. Prados gives a new picture of the war in the Pacific, one which will challenge many previous conceptions about that conflict, and one which will be irresistible to those readers who find histories of that period fascinating. 16 pages of photos.

In the history of the twentieth century, the role of the military intelligence services in the competition among nations is still murky. Among the world's foremost intelligence services, those of Imperial Japan remain the least known. Few stories are as compelling as those surrounding the Japanese Army's Nakano School. From 1938 to 1945, the Nakano School trained more than 2,000 men in intelligence gathering, propaganda, and irregular warfare. Working in the shadows, these dedicated warriors executed a range of missions, from gathering intelligence in Latin America to leading commando raids against American lines in Papua New Guinea, in the Philippines, and on Okinawa. They played major roles in operations to subvert British rule in India, and they organized Japanese civilians into guerrilla units that would have made the invasion of Japan a bloodbath. One graduate used his Nakano commando training to elude U.S. and Philippine military patrols until emerging from the jungle nearly thirty years after the war's end. In the decades after World War II, graduates of the school worked to obtain from the United States and Russia the release of imprisoned war criminals and the recovery of lost territory, including Okinawa. Based on archival research and the memoirs of Japanese veterans, The Shadow Warriors of Nakano shines a much-needed light into the shadows of World War II and postwar Japanese affairs.

Nisei Linguists, first published in 2006, is a fascinating, well-documented look at the World War II service performed by second-generation Japanese-Americans in World War II. The men, serving as interpreters and translators for the U.S. Army Military Intelligence Service, made valuable contributions to the war effort including interrogation of prisoners, translating captured documents, making propaganda broadcasts, and assisting in the Allied occupation of Japan. Nisei Linguists provides a detailed description of the training, the camps, and the field deployments of these servicemen. Illustrated throughout with maps and nearly 80 photographs.

While previous writers have focused primarily on strategic, military, and intelligence factors, Walter Grunden underscores the dramatic scientific and technological disparities that left Japan vunerable and ultimately led to its defeat in World War II.