The Battle of Chrysas was a battle fought in 392 BC in the course of the Sicilian Wars, between the Carthaginian army under Mago and a Greek army under Dionysius I, tyrant of Syracuse, who was aided by Agyris, tyrant of the Sicel city of Agyrium. Mago had been defeated by Dionysius at Abacaenum in 393, which had not damaged the Carthaginian position in Sicily. Reinforced by Carthage in 392, Mago moved to attack the Sicles allied with Syracuse in central Sicily. After the Carthaginians reached and encamped near the river Chrysas, the Sicels harassed the Carthaginian supply lines causing a supply shortage, while the Greek soldiers rebelled and deserted Dionysius when he refused to fight a pitched battle. Both Mago and Dionysius agreed to a peace treaty, which allowed the Carthaginians to formally occupy the area west of the River Halycus, while Dionysius was given lordship over the Sicel lands. The peace would last until 383, when Dionysius attacked the Carthaginians again.