| Summary: | 碩士 === 臺灣大學 === 政治學研究所 === 98 === To meet social needs in the informationized world of the 21st century, the study of information is sure to become a more prominent subject which can be useful to the public. Japan with a strong intelligence-collecting capability has emerged as a world leading economy. It is appropriate to study how Japan’s intelligence organizations have supported the state over the decades from the perspectives of practice and theory.
This essay analyzes the transformation of Japan’s intelligence organizations tackling the changing situations in the post cold-war periods from political and economic viewpoints.The four stages of transformative characteristics are lurking (1945-1950), rebuild(1950-1990), transformation(1990-2000), and expansion(2000 to date). This study focuses on the connection between the reform of Japanese intelligence organizations and Japan’s turning to a normal state；namely, the relationship between its intelligence organizations and political systems.This paper analyzes this issue from three aspects. First, history: how Japan’s intelligence organizations and global strategies have evolved under given international circumstances and national security demands. Second, political and economic: what are the background, strategy, and process of Japan’s intelligence organizational transformation within the political and economic structures after an administrative reforms. Last, experiences and issues：how those organizations have operated to safeguard Japan’s comprehensive security guarantee strategy by reviewing past experiences and current issues, and predicts their future development.
The author refers to literatures, including post-war chronicles and intelligence leaders’ memoirs, as a means to help explain intelligence organizations transformation under various historical backgrounds, and also makes a chronicle chart basing on which the conclusion of this essay is drawn.
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