The Mongols could use either a massive army for battles or use smaller groups for ambushes (like guerilla warfare) as the need arose. Also, the Mongols were very well trained in the use of horses and bows. Also, from childhood the Mongols were taught to shoot and ride.
Impeach is number 5. And appoint is number 10
Beacuse it means alot to muslim as their religion
Pretty much, the Communists were much stronger than the Nationalists. Their public support was strong due to promised land reform for peasants and their military organization was more experienced. The Nationalists had weak, public support and their military was ineffective, corrupt leadership and poor morale. They were an easy beat.
Hope this helps :)