From the Battle of Siffin to today: Rumors are a tool for weakening fronts. The story of the rumor about the destruction of the Euphrates Dam during the Battle of Siffin is an example of the use of psychological warfare to defeat the adversary without direct confrontation. Through the publication of a terrifying report, an attempt is made to create fear and anxiety among opposing forces and weaken their cohesion. Today too, by using fake news and targeted rumors, enemies try to weaken society's morale by exaggerating threats, creating a sense of insecurity, and achieving defeat. In such a situation, insight, maintaining composure, verifying news, and avoiding making decisions based on rumors are among the most important ways to counter psychological warfare.