Answer:
So basically this is my interpretation. The mongols are able to fight the way they do (using horses, bows and arrows freely, with trickery, harshly, with lots of warriors) because the steppe is big and vast. They get lots of practice shooting because they need to hunt, and since it's basically just grassy plains, they are free to fight however they want. They are not restricted by morals or rules. (Wild)
Step-by-step explanation: