They snitched on the opium addicts
By changing the traditional Mongol strategies and war policies to help keep his followers close and create a powerful military. He also took resources from his defeated enemies to help support and grow his nation.
It would be the country of "China" that <span>Japan invaded in 1931 and again in 1938, since Japan is a small island nation and they needed more natural resources and territory. </span>
One goal was that he was suppose to stop all the racial stuff that was going on.
Hope this helped, have a great day! :D