Answer:
The Greeks simply wouldn’t accept the idea of being invaded by another country and they fought until they won. Another factor was that by uniting the city-states, particularly the Spartans and Athenians, it created a skilled, well balanced army that was able to defeat the Persians despite their numbers.
Explanation:
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If you mean supreme leader,Dictatorship does for example Kim jong un is a supreme leader and a dictator of North korea
Hippocrates - Medicine
Euclid - Mathematics