He writes that
This day, however, the hunted was one of their own: reformist Hungarian Prime Minister Miklos Nemeth, whose determination to bring democracy and free markets to his country threatened them all. And so, in the interests of self-preservation, the satraps of the Warsaw Pact marshaled their forces. The goal: a classically Commie "fraternal intervention" of the sort the world had seen before—Hungary in 1956 and Prague in 1968. Only one man stood between them and their quarry. His name: Mikhail Gorbachev.
and it was a simple gesture
As Ceausescu and the others ranted on, calling for armed intervention in Hungary, Nemeth glanced across at the Soviet leader. Their eyes met, and Gorbachev … winked.
Within six months the Warsaw pact was effectively dead and Ceausescu was syanding in front of a firing squad