We use two theoretical categories of the work of Robert Nozick (1974), (a) protection agencies and (b) minimal state, to illustrate by analogy to the CMSP, the dilemmas arising from the use of private military in regions with civil wars and conflicts irregular. We see that the relations preserved PBMC protection agencies (AP) to the extent they act and are consolidated as an economic market and be replaced by coalitions the monopoly of force of modern states. Indeed, protection agencies to Nozick with the same characteristics of the new mercenary armies, only the latter have managed to systematize their methods of recruitment services in the wider protection market.