Page:Political History of Parthia.pdf/70

24, Mithradates was on his way to Hyrcania. The cause of his departure from Mesopotamia at this criti­cal juncture in his campaign was probably a raid by the Sacae, who shortly before 165 had been forced from their homeland in Turkestan by the Yüeh-chi and by this time were certainly close to the eastern borders of Parthia. The forces in Mesopotamia were turned over to a Parthian commander, and Mithra­ dates never returned to that region, for the remainder of his reign was occupied with campaigns in southern and central Parthia. His departure from the Land