So there is one high in the ever-increasing series of lows in Suleiman's later years. Through an uneventful war with the Safavids, both sides decided further hostilities were detrimental and signed a treaty that lasted for decades. A reinforced treaty was also signed with Ferdinand in the West that would outlive Suleiman's reign and the Sultan finally had peace in both the East and the West for the first time during his long reign. But this was a minor high and devastating lows are about to come, first by a rebellion by the "False Mustafa."