All work was conducted by a small staff under pressure of time, without an adequate library, and in the face of an almost complete lack of original Japanese documents which had been either burned in air raids, or destroyed or hidden on surrender. It was often a considerable problem to identify the proper individual for interrogation on a given subject, in many instances the most desirable candidates were dead, and in almost every case the selected officers had to be brought especially to TOKYO from all parts of JAPAN and even, in one case, from as far as SINGAPORE. In addition to being interrogated on their particular specialties and experiences, these officers performed research at the direction of the Naval Analysis Division and, together with the Japanese Naval Liaison Office, gave useful assistance in identifying and procuring other officers for interrogation.ĭespite the cooperation of the Japanese, a number of unavoidable difficulties hindered the investigation. The specific purpose of individual interrogations varied between that of obtaining comment and opinion from those very senior officers who were in a position to view the war as a whole, the discussion of specific operations and engagements with responsible commanders or other eyewitnesses and the elaboration and clarification of documentary material.Īlthough the Imperial Japanese Navy was abolished shortly after the surrender, and its personnel retired and dispersed, permission was obtained from General MacArthur to retain a nucleus of experienced officers at the Naval War College at HIYOSHI. While the original purpose of the interrogations was to gain evidence for an assessment of the role of airpower in the war with JAPAN, in the absence of any other body concerned with the conduct of this naval war, this purpose was broadened to include as wide a survey of wartime events as time and other restrictions would permit.

The interrogations in this volume were conducted in TOKYO during the months of October, November, and December 1945 by officers of the Naval Analysis Division of the U.S.

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