If the name John Birch sounds familiar, it’s probably because of the John Birch Society, a far-right group founded more than a decade after his death in 1945. Less has been written about the man himself: a missionary-turned-spy who built a formidable intelligence network in China during World War II. An ardent Baptist from an early age, Birch traveled to Japanese-occupied China to serve as a missionary in 1940. Two years later, he assisted an U.S. Army flight crew that had bailed from a plane while returning to the mainland from a raid on Tokyo. The Army made him an intelligence officer, and he later worked for the Office of Strategic Services, a precursor to the CIA.