structural:reformatting, structural:summarization
Struggle with Muscovy

In the middle of the 16th century, the Crimean Khanate asserted a claim to be the successor to the Golden Horde, which entailed asserting the right of rule over the Tatar khanates of the Caspian-Volga region, particularly the Kazan Khanate and Astrakhan Khanate. This claim pitted it against Muscovy for dominance in the region. A successful campaign by Devlet I Giray upon the Russian capital in 1571 culminated in the burning of Moscow, and he thereby gained the sobriquet, That Alğan (seizer of the throne). The following year, however, the Crimean Khanate lost access to the Volga once and for all due to its catastrophic defeat in the Battle of Molodi.

Don Cossacks reached lower Don, Donets and Azov by the 1580s and thus became the north-eastern neighbours of the khanate. They attracted peasants, serfs and gentry fleeing internal conflicts, over-population and intensifying exploitation. Just as Zaporozhians protected the southern borders of the Commonwealth, Don Cossacks protected Muscovy and themselves attacked the khanate and Ottoman fortresses.