What were some barriers to expansion for the Mongol people? What made it easier?

The mongols became an empire from the khan dynasty the mongols land was a vast steppe land filled to the brim with horses which made it easy for the mongols to expand because cavalry back then, especially horseback archers where a supremely good war weapon.

Explanation:

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the best description of postwar writers might be progressive.

following the war, writers showed a tendency to work on artistic or social matters rather than political themes. while postwar literature may not have been the greatest period of english literature, the themes provided excellent critics a high number of novels. such examples include anthony burgess, anthony powell and frank kermode, all of which can be placed under the progressive view.