How did the Mongol Empire conquer the wisdom tiger world?

1206, Genghis Khan unified the ministries of Mongolia, and held the Kuliertai meeting at the source of Nanhe River (now the Nen River), that is, named the Great Khan of Mongolia and the founding of the People's Republic of China as "Great Mongolia", thus ending the long-term scuffle in Mobei. From 1209 to 12 18, the Mongols conquered Gaochang Uighur and Xiliao successively, which opened the door for them to advance into Central Asia and Europe. 12 1 1 year, Mongolian fighters attacked the rulers and occupied Zhongdu. 12 18, Mongolia sent troops to destroy the Western Liao regime usurped by Qu Chulu in order to eliminate the remnants of the enemy Naiman Prince Qu Chulu. Later generations established the Wokuotai khanate here. 12 19 to 1222, Genghis Khan merged with hualamozi (now Uzbekistan and Turkmenistan in central Asia) and captured several major cities.