 After some time, Khushnavaz found about Peroz's false promise, and then in return tried to trick him by requesting him to send military experts to strengthen his army.However, when a group of 300 Sasanian military experts arrived to the court of Khushnavaz at Balaam (either the same city as Balkh or a city in Sogdia), they were either killed or disfigured and sent back to Iran, with the information that Khushnavaz did this due to Peroz's false promise.What happened after remains obscure, it is only known that in 467, Peroz managed to capture Balaam.