Terrorism
Terrorist acts frequently have a political purpose. Some official, governmental definitions of terrorism use the criterion of the illegitimacy or unlawfulness of the act. to distinguish between actions authorized by a government (and thus "lawful") and those of other actors, including individuals and small groups. For example, carrying out a strategic bombing on an enemy city, which is designed to affect civilian support for a cause, would not be considered terrorism if it were authorized by a government. This criterion is inherently problematic and is not universally accepted, because: it denies the existence of state terrorism. An associated term is violent non-state actor.
Sociology of terrorism
Conflict theorists view terrorism as a reaction to injustice, which is probably created in the minds of terrorists due to misguidance, illiteracy, or unrealistic goals, and that violent behaviors expressed by terrorist organizations are the result of individual frustration, aggression or showing a readiness to fight. Political conflict makes people look for ways to explain and solve the problems they are facing. If the conflict is deeply rooted, and the current ideology proves unable to deal with the problems, people begin to turn to other ideologies that can often carry a religious theme to them. This is not to say that all forms of terrorist acts are committed by people that are religious. In 83% of the suicide attackers worldwide, between 1980 and 2003, only 43% were identifiably religious.