when the mongols invaded china it was the most difficult and lengthy conquest for the Mongols.
the result of the invations
the conquest took 70 years from 1209 to 1279 due to its difficulty to take over china
the goal of the mongols
the mongols violently invaded northern china and converted them to be controlled by various nomadic states. Then the mongols conquered southern china but more peacefully and then were ruled by the song dynasty.
gaining the Chinese wealth
there was a unification of a divided china and also gave the mongols legitimacy and they believed they had earned the mandate of heaven.
the mongols wanted to extract the wealth from the Chinese so in order to do so they needed to accommodate them
the mongols used administrative practices, taxation systems, and postal system and took the title of the yuan dynasty.