Answer:
According to classical sources, the war began after the abduction (or elopement) of Queen Helen of Sparta by the Trojan prince Paris. Helen's jilted husband Menelaus convinced his brother Agamemnon, king of Mycenae, to lead an expedition to retrieve her.Sep 11, 2019
King Ashoka was a Indian emperor
King Cyrus was a Persian emperor
King Cyrus was king at least 200 years before King Ashoka was.
Due to the time difference & different areas of empires, their tactics in fighting and the way they ruled the land were different.
hope this helps
