<u>They each had their own independent governments.</u>
<u>Explanation:</u>
It is noteworthy that in the Greek empire the city-states like Athens, Sparta, Corinth, and Thebes, had their own independent governments, or in other words, had their own form of governance.
Whatthis means is that, there was little centralization of power in the Greek empire, so it could be referred to as been a fragile empire.