1984 : Yuri Bezmenov warning to America

A disturbing interview given by a KGB defector in 1984 describes America of today and outlines four stages of mass brainwashing used by the KGB.

1) demoralize the people of a country over a period of "at least 15 to 20 years;"

2) destabilize the country's institutions over a period of "2 to 5 years;"

3) precipitate a crisis that would normally unfold over a period of "up to 6 weeks;" and

4) normalize the new state of affairs.

More infos :
https://bigthink.com/the-present/yuri-bezmenov/