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Published online by Cambridge University Press: 07 May 2025
For many years Umebayashi Hiromichi from Peace Depot in Yokohama has been prominent in both the use of the US Freedom of Information Act as a research tool and the analysis of United States and Japanese missile defence policy and operations in East Asia. In 2006 Umebayashi published a major study of US naval operations testing capacity to detect and track North Korean missile launches in the Sea of Japan. That research was based on a careful scrutiny of US Navy ship decklogs and command histories, available at the US Naval History Center in Washington.