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.
Political positions of Noam Chomsky
In response to US declarations of a "War on Terrorism" in 1981 and the redeclaration in 2001, Chomsky has argued that the major sources of international terrorism are the world's major powers, led by the United States government. He uses a definition of terrorism from a US army manual, which defines it as "the calculated use of violence or threat of violence to attain goals that are political, religious, or ideological in nature. This is done through intimidation, coercion, or instilling fear." In relation to the US invasion of Afghanistan he stated: