Intelligence for an American Century: Creating the CIA

This chapter is an introduction to US intelligence mechanisms before the CIA was created. The focus is on Civil War and codebreaking mechanisms in the First World War. Most of the chapter focuses on changes to the US intelligence community. Analysis of the historic record shows that change began in July 1941 with the creation of the office for the Coordinator of Information soon evolving into the Office of Strategic Services. Key figures in the evolutionary process such as William J. Donovan, Roosevelt and Truman are studies within. It also includes discussion of changes between cessation of hostilities and passing of the National Security Act, 1947, which created both the National Security Council and the Central Intelligence Agency. Document: Dulles-Jackson-Correra Report.