The non-aggression principle (also called the non-aggression axiom, the anti-coercion principle, the zero aggression principle, the non-initiation of force, ZAP, or NAP) is a moral stance which asserts that aggression is inherently illegitimate. Aggression, for the purposes of the NAP, is defined as the initiation or threatening of violence against a person or legitimately owned property of another. Specifically, any unsolicited actions of others that physically affect an individual’s property or person (which may also be considered that person's property), no matter if the result of those actions is damaging, beneficial, or neutral to the owner, are considered violent or aggressive when they are against the owner’s free will and interfere with his right to self-determination or the principle of self-ownership.