The Central Intelligence Agency (CIA) is a United States civilian government agency tasked with gathering intelligence related to national security, and distributing that information to assist the government with policymaking. Established in 1947, the CIA was preceded by the Office of the Coordinator of Information from 1941 to 1942, the Office of Strategic Services (OSS) from 1942 to 1945, the Strategic Services Unit from 1945 to 1946, and the Central Intelligence Group’s National Intelligence Authority (NIA) from 1946 to 1947.

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