Answer:
They built their empire based on the adaptation of military warfare.
Step-by-step explanation:
Mongols recognised as Nomadic people from the eastern plain lands of Asia. The Mongols briefly ruled most of Russia, Eastern Europe, Asia and the Middle East. The Mongols established an empire under Genghis Khan and expanded using attacks with an armed and disciplined army. Because of their siege warfare, they were very adaptable. With the help of the imported skilled workers from the conquered regions, Mongols built the capital city in the Karakorum in 1236. They had walls constructed around the place and a palace, which was a town.