Why did Genghis Khan sweep Eurasia?

In terms of team nature, Genghis Khan was a cavalry at that time. Don't underestimate the cavalry. They acted quickly and were very mobile, which was the performance of strong fighting capacity at that time.

As far as players are concerned, prairie people grew up on horseback, riding at the age of three and bowing at the age of five. Riding and shooting are daily life skills, so they have been familiar with each other for a long time and have a tacit understanding, so they don't need extra training.

In terms of weapons, China had advanced cast iron softening technology at that time, with thinner blade, longer strike distance and lighter weight. Cavalry have ranged attack weapons, bows and arrows.

From the purpose, the main task at that time was not occupation, but plunder. Therefore, this campaign has a clear goal, rapid action and unpredictability, so it can sweep across Europe in a short time.