Syr Darya
In 1480 Kerei Khan's son Burunduk became khan. During his reign, the Kazakhs were able to muster an army of 50,000 ghazis and to repeatedly defeat the forces of Muhammad Shaybani along the Syr Darya river. It was during his reign, that the Uzbeks concluded peace with the Kazakhs in 1500, thus giving all the former Uzbek Khanate lands in the north of Syr Darya to the Kazakh Khanate.