High Quality Content by WIKIPEDIA articles! The non-aggression principle (also called the non-aggression axiom, anti-coercion principle, or zero aggression principle) is a deontological ethical stance associated with the Anarcho-capitalist school of Libertarianism (consequentialist libertarians do not base their libertarianism on it). It is an axiom of some forms of anarchism, and also held by many political conservatives, traditionalists and natural law theory. The principle of non-aggression exists in various forms in the faith traditions of Judaism, Christianity, and Islam as well as Eastern philosophies such as Confucianism. It holds that "aggression", which is defined as the initiation of physical force, the threat of such, or fraud upon persons or their property, is inherently illegitimate. In contrast to pacifism, the non-aggression principle does not preclude defense.