Terrorism is one of the most important and pestilential issues in the concept of international security. However, unfortunately, there is not an agreed universal definition for terrorism. From another point of view, terrorism is interpreted according to the global powers’ political approaches and targets. Which means, in any time, if they have political conflicts with a group or state, they can claim the conflicted side as a terrorist. Visa versa, the dominating powers can accept a bloody terrorist organization as a freedom fighter and orientate the global public in this concept. In addition to this unfair situation, again the global powers may find, use and ruin terrorist organizations according to their commercial and political targets in a region. There can be found lots of clues and evidences supporting these claims. However, due to the nature of terrorism, it’s not easy to find legal and official data for an acceptable demonstration.