The war started because Helen was taken away by Paris and the battle began to try to get Helen back.
Sparta conquest of Messiaen Civilization
743 BC - 724 BC
Sparta conquest of Messiaen Civilization began by depopulated by emigration of the Achaean to other states.
2nd Persian War (Xerxes) Battles of Thermopylae, Salamis, Plataea
492 BC - 490 BC
the 2nd Persian War (Xerxes) Battles of Thermopylae, Salamis, Plataea (spellings may vary) occurred during the Greece-Persian Wars, as King Xerxes I of Persia sought to conquer all of Greece.
1st Persian War (Darius) Battle of Marathon
The Greeks and Persians went to war with each other because of the existence of Greek colonies in Asia Minor that had become part of the Persian Empire.
Peloponessian War (2nd) - Athens v Sparta
431 BC - 404 BC
The Peloponnesian War remodeled the entire Greek state. The Athenian empire, which was a stronger side prior to the war, was reduced to a mere vulnerable slave of Sparta. After the war, Sparta was the ruling state of Greece.
Alexander the Great - conquest of Egypt/Persia
336 BC - 323 BC
Alexander The Great went around at least half of the world because he wanted to conquer and take the world over.