what is the battle of troy?

"The Iliad" relates a part of the last year of the siege of Troy, while the Odyssey describes the journey home of Odysseus, one of the Achaean leaders. Other parts of the war were told in a cycle of epic poems, which has only survived in fragments. Basically the Trojan War was waged against the city of Troy by the Achaeans (Greeks) after Paris of Troy took Helen from her husband Menelaus, the king of Sparta. There are many sights that discuss this in greater detail. The source link below (where this was taken) should suffice.