Answer:
The principle of representative democracy
Explanation:
In Federalist 39, James Madison is defending the principle of representative democracy. This principle establishes the government as a body that represents the people, and that has power because people have consented to it. This means that if people did not want that government, they would have the right to depose it and change it. In other words, in a representative democracy, sovereignty comes from the people and not fom the government.
When the Persians were threatening the freedom of the Greek city-states through invasion. This united the city-states, set their differences aside, and fought valiantly for Greek freedom
I’m not entirely sure, but maybe it’s Latin