Answer:
It has become the opposing form of government to a monarchy and has therefore no monarch as head of state. Most often a republic is a single sovereign state, but there are also sub-sovereign state entities that are referred to as republics, or that have governments that are described as republican.
Explanation:
The Greco-Persian Wars were two conflicts that occurred between 490 and 479 BCE and pitted the Persian Empire against the Greek city-states. The conflict began after Athens and Eretria gave assistance to the Ionians in their rebellion against Persia and its ruler, Darius. (got the answer from google hehe)
