What Perils are Brought to that Prince or that Republic which Avails Itself of Auxiliary and Mercenary Troops
If I had not in another work of mine treated a length of how useless mercenary and auxiliary troops are, and how useful their own [national troops] are, I should extend myself in this discourse much more than I will: but having talked of it at length elsewhere, I shall be brief in this part. Nor did it seem to me I ought to pass it over entirely, having found in Titus Livius (as to auxiliary soldiers) so striking an example, for auxiliary soldiers are those which a Prince or a Republic send to your aid, captained and paid: and referring to the text of Titus Livius, I say, that the Romans at different places had routed two armies of the Samnites with their army which had been sent to the succor of the Capuans, and by this liberated the Capuans from that war which the Samnites made against them, [and] as they wanted to return to Rome, in order that the Capuans, who had been deprived of their garrisons should not become a prey again to the Samnites, left two legions in the country of Capua for their defense: Which legions, plunged into idleness, begun to delight themselves there, so that forgetting their country and the reverence due to Senate, decided to take up arms and make themselves lords of that country which they had defended with their virtu, it appearing to them that the inhabitants were not worthy to possess those things which they did not know how to defend. Which matter becoming known, it was suppressed and corrected by the Romans, as will be shown more fully where we will speak of conspiracies.
I say again, therefore, that of all the other kinds of soldiers the auxiliaries are the most harmful, because that Prince or that Republic which calls them to their aid have no authority over them, but only he who sends them has authority. For auxiliary soldiers are those who are sent you by a Prince, as I have said, under their captains, under their ensigns, and paid by them, as was this army that the Romans sent to Capu............