“Japanese codes were cracked at least a year before Pearl Harbor. From then on, U.S. diplomatic, military and counterespionage agents occupied what amounted to front-row seats in the Tokyo war councils.”
You can read the decoded Japanese messages HERE…
Additional articles about the Pearl Harbor attack can be found here…
From Amazon:
Japanese naval codes cracked in 1940operation order number 2 of the Japanese navyDecember 7 1941 Japanese military operation order number 2Japanese navy operation order number 2 meant attack Pearl Harborattack Pearl Harbor operation order number 2operation order number 2 issued November 7 1941congress investigated 1941 pearl harbor attackpearl harbor bombing studied by congress 1945US military code breakers 1940Japanese codes were broken in 1940congress investigated 1941 pearl harbor attackpearl harbor bombing studied by congress 1945
Japanese naval codes cracked in 1940operation order number 2 of the Japanese navyDecember 7 1941 Japanese military operation order number 2Japanese navy operation order number 2 meant attack Pearl Harborattack Pearl Harbor operation order number 2operation order number 2 issued November 7 1941congress investigated 1941 pearl harbor attackpearl harbor bombing studied by congress 1945US military code breakers 1940Japanese codes were broken in 1940congress investigated 1941 pearl harbor attackpearl harbor bombing studied by congress 1945
