Chapter 1. U.S. COMINT, 1939–1941
THE U.S. INTELLIGENCE ORGANIZATIONS PRIOR TO PEARL HARBOR
By the time the United States entered the Second World War, significant measures had been taken toward establishing an intelligence structure. On 26 June 1939, President Roosevelt issued to the Army, Navy, and Federal Bureau of Investigation (FBI) an order restricting investigation of espionage and sabotage. These agencies clarified their relationship in the Delimitations Agreement of 5 June 1940, whereby the Military Intelligence Division (MID) and the Office of Naval Intelligence (ONI) were to have cognizance over the services' military and civilian personnel in espionage/counterespionage and sabotage matters, while the FBI would have that responsibility ...
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