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Operation Vengeance: The Secret Mission to Assassinate the Architect of the Pearl Harbor Attack

Nearly a year and a half after the Pearl Harbor attack, the United States Office for Naval Intelligence intercepted and deciphered a coded message from the Japanese. The Americans realised they had struck gold. The message contained the detailed travel schedule of Yamamoto, who was planning to visit troops on the Solomon Islands in an attempt to boost morale. What followed was preparing an incredibly daring and risky secret operation: Operation Vengeance, the mission to assassinate the mastermind behind the Pearl Harbor Attack. Consider supporting HoH: ►Patreon:   / houseofhistory   ►Become a channel member:    / @hoh   ►Leave a tip: https://www.paypal.me/HouseofHistory ►Webshop: https://houseofhistory.co/shop/ Use code "HISTORYBONUS5" for a 5% subscriber discount! Check out House of History: the Podcast ►iTunes: https://podcasts.apple.com/podcast/ho... ►Spotify: https://open.spotify.com/show/71f9cyl... Socials: ►Check out my blog: https://www.houseofhistory.co ►My Twitter:   / oscar_hoh   My videos tend to get arbitrarily demonetized. That is why I decided to open up a Patreon where people can support the channel. If you decide to pledge as little as 1$/month you will gain access to a monthly series exclusive to my Patrons! Chapters: 0:00 Introduction 1:42 Deciphering the Itinerary 4:18 Operation Vengeance 9:15 The Controversy Watch my documentary series: ►History of Prussia playlist:    • History of Prussia   ►End of Empire - Downfall of the Qing Dynasty playlist:    • End of Empire - China's Last Emperor   ►World War 2 playlist:    • World War 2   ►Hitler's Spies playlist:    • Hitler's Spies   The content of this video covers events, people or concepts via a lecture-style presentation that is educational and historical in nature. Every video is original content by House of History. The events relating to conflict in this video are portrayed in their historical context without either value judgment or an ideological message attached to it. There is no intent to shock, upset or disgust. The goal of my channel is to make interesting lecture-style videos, no more, no less. Thank you for taking the time to check out House of History, I hope you will find the films informative, interesting and enjoyable! By February 1943 the tide of the war in the Pacific was decisively shifting in favour of the United States. The Japanese had retreated from Guadalcanal, lost many warships, aircraft carriers and aircraft, and the morale of Imperial troops was plummeting. From his base in Rabaul, Papua New Guinea, Yamamoto decided to visit troops on the frontlines on Bougainville, part of the Solomon Islands Archipelago. The visit’s goal was to increase soldiers’ dwindling morale. They often complained about the lack of senior commanders ascertaining the frontlines’ situation. Now, over the years American, British, French and Dutch codebreakers cooperated in order to break the Japanese naval codes and cyphers. Japan’s main, and most secure communication scheme used by the Imperial Japanese Navy was referred to as JN-25. Intercepting dozens of coded Japanese diplomatic and military messages, slowly but surely the grasp on JN-25 strengthened. One of the critical methods was the so-called known-plaintext attack, abbreviated to KPA, and commonly known as exploiting “Cribs.” Basically, the process of cribbing meant cryptographers inferred coded messages with the partial knowledge of plaintext they expected. Japanese military orders often contained sentences such as “I have the honor to inform your excellency…”. Knowing this helped cryptographers to decipher intercepted coded messages. And although the Japanese Navy adopted improved variants, namely JN-25b, c and eventually d, Allied codebreakers managed to decipher large parts of the messages that were transmitted by the Japanese, albeit without their knowledge. If you have any feedback, questions or criticism feel free to leave a comment. Your opinion truly aids me in improving the content of the channel! If you have a question, feel free to leave a comment and I will either write a reply, answer your question in a Q&A video, or make an entire video about it! Sources: Written by House of History Further reading: Kahn, David (1996) [1967]. The Codebreakers. Macmillan. Music: https://www.purple-planet.com Photos, paintings and imagery: Public Domain, Wikicommons #HouseofHistory #History