The Battle of Cunaxa was a significant conflict that occurred in ancient Persia. Synonyms for this historical event include the Battle of Kunaxa and the Battle of the Persian Gate. It took place in 401 BC and pitted Cyrus the Younger against his brother King Artaxerxes II. The battle was fought in the vicinity of Cunaxa, a city located in present-day Iraq. It was an important confrontation that had a significant impact on Persian history and politics. Despite his valiant efforts, Cyrus the Younger was killed in battle, and his forces were eventually defeated. The Battle of Cunaxa marks a pivotal moment in ancient Persian history.