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[1] [2] [3] A similar break into the most secure Japanese diplomatic cipher, designated Purple by the US Army Signals Intelligence Service, started before the US entered the war. Product from this source was called Magic. On the other side, German code breaking in World War II achieved some notable successes cracking British naval and other ...
The W.E.B. Griffin series The Corps is a fictionalized account of United States Navy and Marine Corps intelligence operations in the Pacific Theater during World War II. Many of the main characters in the novels, both fictional and historical, have access to and use intelligence from Magic.
The causes of World War II have been given considerable attention by historians. The immediate precipitating event was the invasion of Poland by Nazi Germany on September 1, 1939, and the subsequent declarations of war on Germany made by Britain and France , but many other prior events have been suggested as ultimate causes.
The Colossus team were hampered by their wish to use World War II radio equipment, [87] delaying them by a day because of poor reception conditions. Nevertheless, the victor's 1.4 GHz laptop, running his own code, took less than a minute to find the settings for all 12 wheels.
Total war is a concept that has been extensively studied by scholars of conflict and war. One of the most notable contributions to this field of research is the work of Stig Förster, who has identified four dimensions of total war: total purposes, total methods, total mobilisation, and total control.
World War II [b] or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war .
During the war another 117 were raised for foreign service and 56 were raised for national defense. These totaled 223 including the Imperial Guard. Additionally one parachute and four armored divisions were formed. Of this total no more than 35, that is one fifth of the IJA infantry division total, fought in the Pacific theatre.
Unit 731 were covert medical experiment units which conducted biological warfare research and development through human experimentation during the Second Sino-Japanese War (1937–1945) and World War II. Unit 731 responsible for some of the most notorious war crimes.