structural:reformatting, linguistic:voice_change
Central Asia

Genghis Khan forged the initial Mongol Empire in Central Asia, starting with the unification of the nomadic tribes of the Merkits, Tatars, Keraites, Turks, Naimans and Mongols. The Buddhist Uighurs of Qocho surrendered and joined the empire. He then continued expansion via conquest of the Qara Khitai and of the Khwarazmian Empire.

Large areas of Islamic Central Asia and northeastern Persia were seriously depopulated, as every city or town that resisted the Mongols was destroyed. Each soldier was given a quota of enemies to execute according to circumstances. For example, after the conquest of Urgench, each Mongol warrior – in an army of perhaps two tumens (20,000 troops) – was required to execute 24 people, or nearly half a million people per said army.

Against the Alans and the Cumans (Kipchaks), the Mongols used divide-and-conquer tactics by first warning the Cumans to end their support of the Alans, whom they then defeated, before rounding on the Cumans. The Alans were recruited into the Mongol forces and known as the Asud, with one unit called "Right Alan Guard" that was combined with "recently surrendered" soldiers. Mongols and Chinese soldiers stationed in the area of the former state of Qocho and in Besh Balikh established a Chinese military colony led by Chinese general Qi Kongzhi.

During the Mongol attack on the Middle East ruled by the Mamluk Sultanate, most of the Mamluk military was composed of Kipchaks and the Golden Horde's supply of Kipchak fighters replenished the Mamluk armies and helped them fight off the Mongols.

Hungary became a refuge for fleeing Cumans.

The decentralized, stateless Kipchaks only converted to Islam after the Mongol conquest, unlike the centralized Karakhanid entity comprising the Yaghma, Qarluqs, and Oghuz who converted earlier to world religions.

The Mongol conquest of the Kipchaks led to a merged society with a Mongol ruling class over a Kipchak-speaking populace which came to be known as Tatar, and which eventually absorbed Armenians, Italians, Greeks, and Crimean Goths in Crimea, the origin of the current Crimean Tatars.