An alliance of independent states Oligarchy Democracy Confederation Autocracy

Confederation

Explanation:

A democracy is "a system of government by the whole population or all the eligible members of a state, typically through elected representatives."

An oligarchy is "a small group of people having control of a country, organization, or institution."

An autocracy is "a system of government by one person with absolute power."

The definitions for all of these can be found just by searching the word on the web.

its many islands, high mountains, and remote peninsulas isolated population centers.

the tallest building in the western hemisphere and the sixth tallest building in the world