In 499 BCE the Greek city-states in Asia Minor revolted against Persian rule. They were not rivals.
The Persians began to suppress a revolt initiated by the Ionian-Greek city-state of Miletus. The following year the revolt spread and Eretria and Athens from mainland Greece joined in to assist them. This lead to the revolt spreading and the Persians, after putting the Ionian revolt by 493 BCE, turning to mainland Greece to install local tyrants who would keep the Greek cities quiet and not disrupt peace in the Persian Empire.
The overall result was wars which stretched from 499 to 449 BCE, after which the Persians gave up trying to impose peace and left the Greeks to go back to their usual on-going wars between each other.
The battle of Marathon 490 BCE.
The 13 colonies all worked together to defeat the British troops, the most powerful army at the time.
It is unclear what you mean by "perisain army." If you are referring to the Persian army, then the Greeks, particularly the city-states of Athens and Sparta, joined forces to defeat the Persians in the Greco-Persian Wars. The exact composition of the allied forces varied depending on the specific battles, but the Greeks were successful in repelling the Persian invasions.
They adopted a superior strategy of first defeating the Persian navy, and cutting off their sea supply line. The Persians had to send half their army home for the winter, and the Greeks united the city-state armies to defeat the depleted Persian army.
Their plan was to defeat the Persian fleet in the naval battle, with hope, that their land army will withdraw, without support.
No, it was the other way round. Athens Defeated the Persian Army at the Battle of Marathon.
The Persians were defeated by the Athenian Admiral Themistocles at the sea battle of Salamis and the Spartan general Pausanius defeated the Persian army led by Mardonius at the battle of Plataea .
When the opposing leaders of the animal farm join together to defeat the human(farmer) invasion
To join together to defeat the Persian fleet, and whn this was done, to send out their armies to join together to defeat the Persian army.
He failed to defeat the Army of the Seventh Coalition.
he worked in the army
By temporarily setting aside their usual fighting amongst themselves, uniting, establishing a plan to first defeat the Persian fleet and then its army, and executing it intelligently and steadfastly.