Anabasis is the most famous work of the Ancient Greek professional soldier and writer Xenophon. It narrates the expedition of a large army of Greek mercenaries hired by Cyrus the Younger to help him seize the throne of Persia from his brother, Artaxerxes II, in 401 BC. The seven books making up the Anabasis were composed circa 370 BC. Though as an Ancient Greek vocabulary word, ¿¿¿¿¿¿¿¿¿¿ means "embarkation", "ascent" or "mounting up", the title Anabasis is rendered in translation as The March Up Country or as The March of the Ten Thousand. The narration of the army's journey across Asia Minor and Mesopotamia is Xenophon's best known work, and "one of the great adventures in human history".