In war it is essential to know the opponent, to understand the strategy he uses and his motivation. The global learn russian language situation, which we have right now, might be called war as well – for example “war on terror” which the United States leads against Islamic terrorism, or “holy war” – the term which is often used as a synonym for jihad. In order to understand the problem we need to analyze what kind of role Islam plays in modern terrorism, what is the definition of jihad, and what is the perception of this term in the eyes of Muslims. In this paper I will analyze whather we are allowed to talk about Islamic terrorism, if Islam and Islamic law are legitimate uses of power, if we can say that Islam is the reason of terrorism or if there are same others. First, to analyze the connection between Islam and its’ role in terrorism we have to understand the term “jihad”. The word itself comes from Arabic and means “the struggle” or “striving” (in the way of God). Usually people translate word “jihad” as a “holy war” and based on this they make assumptions that Islam is the religion of violence. They very often associate jihad with fanaticism, cruelty, and intolerance