When a group of 300 military experts arrived to the court of Kunkhas at Balaam (possibly Balkh), they were either killed or disfigured and sent back to Iran, with the information that Kunkhas did this due to Peroz's false promise. Around this time, Peroz allied himself with the Hephthalites or the Alchon Huns of Mehama, the ruler of Kadag in eastern Bactria. With their help, he finally vanquished Kidarites in 466, and brought Bactria briefly under Sasanian control, where he issued gold coins of himself at Balkh. The style of the gold coin was largely based on the Kidarite coins, and displayed Peroz wearing his second crown. The following year (467), a Sasanian embassy arrived to the Byzantine capital of Constantinople, where the victory over the Kidarites was announced. The Sasanian embassy sent to the Northern Wei in 468 may have likewise done the same.