The lead financial writer at the Telegraph, Ambrose Evans-Pritchard, wrote in 2000:
Declassified American government documents show that the US intelligence community ran a campaign in the Fifties and Sixties to build momentum for a united Europe.
The head of the Ford Foundation, ex-OSS officer Paul Hoffman, doubled as head of ACUE [below, we’ll explain who these players are] in the late Fifties. The State Department also played a role. A memo from the European section, dated June 11, 1965, advises the vice-president of the European Economic Community, Robert Marjolin, to pursue monetary union by stealth.
It recommends suppressing debate until the point at which “adoption of such proposals would become virtually inescapable”.
In other words, the U.S. State Department recommended ramming through the creation of the EU before Europeans knew what was happening.