According to Machiavelli, since a single ruler controls the monarchy and everyone else is the servant of the ruler,  who has the power to divide his lands sending several administrators to those divisions and to change the administrators as he wishes; in a conflict against the ruler, it is not easy to convince the administrators around the ruler or the public, which is exactly the reason why it is not possible to invade and conquer that country.

In the extract given above from his book titled The Prince, which of the following countries does Machiavelli mention?