Question

in the late twelfth century, however, a mongol chief named ______ began to unite the various tribes under his rule. he did so by incorporating the warriors of each defeated tribe into his own army, gradually building up a large and terrifyingly effective military force. in 1206, his supremacy over all these tribes was reflected in his new title: genghis khan. kubla khan jochi temujin tolui

Explanation:

Genghis Khan was originally named Temujin. He united the Mongol tribes. Kubla Khan was his grandson. Jochi was his son. Tolui was also his son.

Answer:

Temujin