…the Mongolian plains, in order to oppose…

…the Mongolian plains, in order to oppose Ariq Böke’s claim to the title of Great Khan.

Upon returning to his own territories, Kublai summons a kurultai of his own, and in April 1260 is proclaimed Great Khan.

Only a small number of the royal family supports Kublai's claims to the title; the small number of attendees nevertheless proclaim him Great Khan.

This subsequently leads to warfare between Kublai and his younger brother, which will result in the eventual destruction of the Mongolian capital at Karakorum.