The documents confirm suspicions voiced at the time that America was working aggressively behind the scenes to push Britain into a European state. One memorandum, dated July 26, 1950, gives instructions for a campaign to promote a fully fledged European parliament. It is signed by Gen William J Donovan, head of the American wartime Office of Strategic Services, precursor of the CIA.
The documents were found by Joshua Paul, a researcher at Georgetown University in Washington. They include files released by the US National Archives. Washington's main tool for shaping the European agenda was the American Committee for a United Europe, created in 1948. The chairman was Donovan, ostensibly a private lawyer by then.