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Counterintelligence: World War II

Counterintelligence can be described as activities designed to prevent or thwart spying, intelligence gathering, and sabotage by an enemy or other foreign entity. This guide provides books, articles, reports, websites, and videos on the subject.

Books

Articles/Reports

Online Resources

Podcast-- The Double Cross System

Video-- Patricia Warner: OSS Counterintelligence

Mrs. Patricia Warner speaks on working for the OSS during the Second World War, and how she played a role in breaking the famous Enigma encoding machine. 2009.