War, and the threat of war, spurs governments to invest in secret military technologies and weapons. Imperial Japan, ahead of the Second World War, was no exception. After the First World War, Japan set up the Noborito Research Institute: a division of scientists and technicians to invest in overt and clandestine warfare.
Stephen Mercado dives into this history in his new book Japanese Spy Gear and Special Weapons: How Noborito’s Scientists and Technicians Served in the Second World War and the Cold War (Pen & Sword Books: 2025). At Noborito, Japanese scientists researched fanciful weapons, like balloon bombs and death rays; covert techniques like poisons and counterfeiting—and more insidious activities, like biological weapons.
Stephen Mercado, the author of The Shadow Warriors of Nakano: A History of the Imperial Japanese Army’s Elite Intelligence School, has also written a dozen articles and several dozen book reviews on Asian and open-source intelligence. His writing has appeared in the journals Intelligence and National Security, International Journal of Intelligence and Counter Intelligence, Studies in Intelligence and on the website 38 North of the Henry L. Stimson Center. His translations include numerous declassified Chinese and Japanese diplomatic documents published as part of the Woodrow Wilson Center’s Cold War International History Project. Retired from the CIA Open Source Enterprise, he has twice won a CIA Studies in Intelligence award for his writings.
He is also a frequent contributor to the Asian Review of Books.
You can find more reviews, excerpts, interviews, and essays at The Asian Review of Books, including its review of Japanese Spy Gear and Special Weapons. Follow on Twitter at @BookReviewsAsia.
Nicholas Gordon is an editor for a global magazine, and a reviewer for the Asian Review of Books. He can be found on Twitter at @nickrigordon.
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By Marshall Poe
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War, and the threat of war, spurs governments to invest in secret military technologies and weapons. Imperial Japan, ahead of the Second World War, was no exception. After the First World War, Japan set up the Noborito Research Institute: a division of scientists and technicians to invest in overt and clandestine warfare.
Stephen Mercado dives into this history in his new book Japanese Spy Gear and Special Weapons: How Noborito’s Scientists and Technicians Served in the Second World War and the Cold War (Pen & Sword Books: 2025). At Noborito, Japanese scientists researched fanciful weapons, like balloon bombs and death rays; covert techniques like poisons and counterfeiting—and more insidious activities, like biological weapons.
Stephen Mercado, the author of The Shadow Warriors of Nakano: A History of the Imperial Japanese Army’s Elite Intelligence School, has also written a dozen articles and several dozen book reviews on Asian and open-source intelligence. His writing has appeared in the journals Intelligence and National Security, International Journal of Intelligence and Counter Intelligence, Studies in Intelligence and on the website 38 North of the Henry L. Stimson Center. His translations include numerous declassified Chinese and Japanese diplomatic documents published as part of the Woodrow Wilson Center’s Cold War International History Project. Retired from the CIA Open Source Enterprise, he has twice won a CIA Studies in Intelligence award for his writings.
He is also a frequent contributor to the Asian Review of Books.
You can find more reviews, excerpts, interviews, and essays at The Asian Review of Books, including its review of Japanese Spy Gear and Special Weapons. Follow on Twitter at @BookReviewsAsia.
Nicholas Gordon is an editor for a global magazine, and a reviewer for the Asian Review of Books. He can be found on Twitter at @nickrigordon.
Learn more about your ad choices. Visit megaphone.fm/adchoices
Support our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/military-history
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