Why is Mongolia divided into two parts: Outer Mongolia and Inner Mongolia

By 15th century Mongols were no longer the dominant force that propelled them into the largest contiguous world empire. Mongols were divided into Eastern and Western Mongols ( Oirads, Dzungars). The Eastern Mongols further subdivided into Northern and Southern Mongols. The situation was chaotic, as many khans were competing with each other to become the next great…