The article didn't use the term "psy-ops" but it's basically what they're doing.
Psy-ops is the warfare over the minds of the people involved -- the people back home, the enemy (civilian) population, etc.
The Nazis dropping leaflets showing that Nostradamus predicted a Nazi victory is an example of psy-op warfare.
It's another word for psychological warfare.
There was a lot of psy-ops in the recent Lebanon war. Leaflets being dropped, TV stations taken over by the Israeli army (who then broadcasted stuff like "Nazrallah stinks!"), etc.