After the Mongols began a mass migration to find food in 1000 B.C.E., they proceeded to conquer an empire wider than that of Alexander the Great, expanding over large parts of Russia, Poland, Palestine, and Japan (before Genghis Khan's time), and then China from 1200 to 1300 C.E. Mongol power was able to amass such a huge land empire in a short period of time due to many reasons. These reasons include, but are not limited to, their nomadic and barbaric ways (which ties in with their sudden need for food and trade), their military strength and strategy, and their great tacticians and leaders.

The Mongols' nomadic and barbaric ways caused them to depend on civilized nations--sedentary people--for food and trade. The Mongols never accumulated a surplus of food because they couldn't carry it with them, which meant that if their animals became diseased or killed, the Mongols...