They selected the venue - a strait with an island at the entrance which meant the Persian fleet was split in two and strung out coming through, which allowed the Greek ships to attack them spread out and vulnerable.
He was a servant of Themistocles, who aided in the subterfuge at the Battle of Salamis.
Battle at Midway
The Battle of Thermopylae was fought between a Greek confederation of soldiers and the armies of the Persian Empire. The Greeks were led by a contingent of elite Spartans aided by thousands of slaves and other Greek soldiers.
United States (also aided by the french with tanks), and germany
The Greeks, led by Agamemnon, who had made an agreement between the greek states. They were aided by some of the gods.
Achilles didn't really have a quest, but he joined the Greeks in battle to get Helen of Troy back to her husband Menelaus. Since his mother was a river goddess, he was able to get armour crafted by Hephaestus himself. Although he was the bravest soldier in the ranks of Agamemnon, he was killed by Paris of Troy. The Greek gods and goddesses were divided in this matter, like Poseidon and Aphrodite were with the Trojans, while Athena and Hephaestus aided the Greeks.
There were a series of revolts amongst Greek cities states in Asisa Minor, 10 years prior to the battle of Salamis. These became known as the Ionia Revolts and were aided by the city state of Athens. The Persian Empire which controlled Asia Minor sent their army to Athens to punish them for supporting these revolts. The Athenians fought the Persians at Marathon and won the battle. When Xerxes took over the kingdom after his father Darius death, he gathered an army of over a million men to burn Athens to the ground. At first the Persians fought against a small band of Greeks at a small stretch of land known as Thermopylae meaning the hot gates. Xerxes' army fought against 300 Spartans lead by king Leonidas and several thousand other Greeks. Several weeks later the Persians marched and sailed down to Athens. At Athens they burned down the temples on the Acropolis to avenge their loss to the Athenians at the battle of Marathon. A few days later the Persians fought the Athenian navy under the command of Themistocles and a coalition of Greek city-states in the narrow straights of Salamis. Outnumbered 3 to 1 the Greek coalition navy defeated the Persian navy at Salamis, allowing the Greek states to be free from Persian influence. As a result Athenian cultural flourished and gave rise the Classical Greek Civilization.
The Confederates under Robert E. Lee, very much aided by Stonewall Jackson.
The Persians fought against the citizens of Athens who were aided by those of Plataea.
You could not take shelter from the sirens unless you had either a musician on the ship as was the case for the Argonauts who had Orpheus; or had had the directions of Circe who aided Odysseus.
As Greeks, their cultures were very similar. Their alliance was for self interest - Sparta aided Athens, and Athens reciprocated.
Yes, because he aided Perseus in a battle vs. Medusa as well helped the King of Gods Zeus in a battle vs. the giants during Greek Mythology.