Mongol campaigns in Central Asia
Mongol campaigns in Central Asia occurred after the unification of the Mongol and Turkic tribes on the Mongolian Plateau in 1206. Smaller military operations of the Mongol Empire in Central Asia included the destruction of surviving Merkit and Naimans (which involved forays into Cumania) and the conquest of Qara Khitai.
Source: Wikipedia — Mongol campaigns in Central Asia (CC BY-SA 4.0)