In 1942, President Franklin D. Roosevelt appointed William Donovan as head of the Office of Strategic Services (OSS), an organization that was given the responsibility of espionage and for helping the resistance movement in Europe. He was helped in this by William Stephenson and Britain's MI6 chief, Stewart Menzies.
Donovan was given the rank of major general and during the Second World War he built up a team of 16,000 agents working behind enemy lines. The growth of the OSS brought conflict with John Edgar Hoover who saw it as a rival to the Federal Bureau of Investigation.
As soon as the…
