Mongol
The Nomadic people who live in the Asian steppe are called pastoralists. Nomadic people herded domesticated animals, they depended on their animals for food, clothing, and housing.
They lived in the yurts that they can constantly on the move, searching for good pasture to feed their herds. Steppe nomads traveled together in kinship groups called clans. Different clans came together when they needed a large force to attack a common enemy or raid their settled neighbors. Nomadic people often trade with other country for the stuff they lacked, such as grain metal, cloth, and tea. And they also attacks when the empire became divided and weak. They lifestyle which directly help them to attacks other empire.
Around 1200, Temujin, known as Genghis Khan, sought to unify the Mongols under his leadership. He led the Mongols in conquering much of Asia. They destroyed one city after another--Utrar, Samarkand, Bukhara- and slaughtered many inhabitants. By 1225, Central Asia was under Mongol control.
Genghis Khan was a brilliant organizer, he assembled his Mongol warriors into a mighty force. grouped his warriors in armies of 10000. He was a gifted strategist. Genghis used various tricks to confuse his enemy. For example, he uses small Mongol army to attack, and when the enemy gave chase, the rest of the mongol army appear suddenly and slaughter the surprised enemy forces. Also, Genghis used cruelty as a weapon. He believed in terrifying his enemies into surrender. IF a city refused to open its gates to him, he might kill the entire population when he finally captured the place.
Genghis Khan
After Genghis’s died in 1227, his sons and grandsons continued the conquest. Under their leadership, the armies drove south, east, and west out of inner Asia. By 1260 the Mongols had divided their huge empire into four regions. The Khanate of the Great Khan, the Khanate of Chagatai, the Ilkhanate, and the Khanate of the Golden Horde. Mongol rulers rarely imposed their beliefs or way of life on those they conquered. Over time, some of they even adopted aspects of the culture of the people they ruled.
From the mid-12000s to the mid-1300s, this time period is called the Pax Mongolica. the Mongols imposed stability and law and order across much of Eurasia. They ensure the safe passage for the trade caravans, travelers and missionaries between each empire. Other things spread along with the goods and ideas. the disease might have traveled along trade routes or have been passed to others by infected Mongol troops.