We don't know. Alphabetic writing was not adopted until the first millennium BCE, so what went on in Greece before then we don't really know. However Archaeology tells us that there was warfare in the Mycenaean era between city kingdoms in Crete, the Peloponnese, and the Aegean Islands.
From the poets, we have a story of a war against Troy in the 12th Century BCE, but this more likely to have been a coordinated series of pirate raids chasing loot.
Histories began to be written in the the 5th Century BCE, and from this we get the wars of subjection of the Greek cities of western Asia Minor by Cyrus, king of Persiain the second half of the 6th Century BCE.
See the link 'Greek wars' in the separate panel Sources and related links below
Thucydides was a general for a short part of the Peloponnesian War and recorded a history of the first two thirds of that war.
Which particular war? The Persian what?
Ares was the ancient Greek god of war. Athena on the other hand, was the goddess of wisdom and war strategy.
Koine Greek
Greek War of Independence happened in 1821.
The Greek city-states of Asia Minor revolted against Persian rule. This war spread to include mainland Greek city-states.
The Peloponnesian war pitted Greek against Greek.
The modern Greek flag (with the cross and stripes), was first used during the indipendence war (1822).
In greek war is πόλεμος (polemos). It doesnt have greek root.
There was no 'greek and marathon war'.
The Greek coalition was at war with the Trojans - hence the name .
Aeschylus (525 BC - 456 BC)Greek tragic dramatistIn war, truth is the first casualtysource: quotationspage com
Greek.
There were over 200, led at first by Sparta, then Athens.
Greek attacks on the Persian navy
The Greek and Persian War started in 499 B.C.
Thucydides was a general for a short part of the Peloponnesian War and recorded a history of the first two thirds of that war.