The paper points out the deep connection between libertarian philosophy and political realism. At
the core of the analysis there is the idea the State is an anti-juridical organization, because it rests
on a bellicose way to conceive human relations. In this sense, the theory of a free society is not only
the logical consequence of Misesian refutation of every collectivist way to produce goods and services
(protection and law included) in absence of market prices. Using Rothbard’s and Salin’s studies on
monopoly and cartels, the paper emphasizes the difference between a market society and a society
without State, remarking that in the last one a monopoly de facto is also a monopoly de jure. For
this reason, libertarians are called to prove that a society without State is the best way to reduce
coercion and aggressions; and that the suppression of the legal monopoly of the force is the necessary
condition to realize a social order less unjust, whit a checks and balance system marked by a strong
competition of companies charged to provide legality, security and protection.
