Definition of Terrorism https://ekuonline.eku.edu/homeland-security/definition-history-and-types-terrorism
Agencies such as the FBI, the US DOD and the US DOS realize the need to define terrorism. While each definition is a bit different, they do have constant themes. These themes include involving premeditation terrorist acts which are motivated by some political or social agenda, terrorists generally target non-combatants or civilians and are generally sub-national or clandestine groups. The configuration of terrorist groups is generally dependent on one's environment, relationship with the state, motivation and/or goals.