 When Xenophon and the Ten Thousand mercenaries were fighting their way out of Persia, the first Greek city they reached was Trebizond (Xenophon, "Anabasis", 5.5.10).The city and the local Mossynoeci had become estranged from the Mossynoecian capital, to the point of civil war.Xenophon's force resolved this in the rebels' favor, and so in Trebizond's interest.