 Complete the following phrase:  During the course of the 17th and 18th centuries, most regions inhabited by ethnic Mongols, notably Outer and Inner Mongolia became part of the Qing Empire. Even before the dynasty began to take control of China proper in 1644, the escapades of Ligden Khan had driven a number of Mongol tribes to ally with the Later Jin. The Later Jin conquered a Mongol tribe in the process of war against the Ming. Nurhacis early relations with the Mongols tribes was mainly an alliance. After Ligdens defeat and death his son had to submit to the Later Jin, and when the Qing dynasty was founded the following year, most of what is now called Inner Mongolia already belonged to the new state. The Khalkha Mongols in Outer Mongolia joined in 1691 when their defeat by the Dzungars left them without a chance to remain independent. The Khoshud in Qinghai were conquered in 172324. The Dzungars were finally destroyed, and their territory conquered, in 175657 during the 