Conquered states that have been accustomed to liberty and the government of their own laws can be held by the conqueror in three different ways. The first is to ruin them; the second, for the conqueror to go and reside there in person; and the third is to allow them to continue to live under their own laws, subject to a regular tribute, and to create in them a government of a few, who will keep the country friendly to the conqueror
Niccolo MachiavelliAnd above all you ought to guard against leading an army to fight which is afraid or which is not confident of victory. For the greatest sign of an impending loss is when one does not believe one can win.
Niccolo MachiavelliTherefore, a prudent ruler ought not to keep faith when by so doing it would be against his interest, and when the reasons which made him bind himself no longer exist. If men were all good, this precept would not be a good one; but as they are bad, and would not observe their faith with you, so you are not bound to keep faith with them.
Niccolo MachiavelliWhen you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred.
Niccolo Machiavelli