The disintegration of the Pagan Empire was now complete . But the Mongols refused to fill in the power vacuum they had created . They would send no more expeditions to restore order . The emperor apparently had no interest in committing troops that would be required to pacify the fragmented country . Indeed , his real aim all along may have been " to keep the entire region of Southeast Asia broken and fragmented . " It would be another two years until one of Narathihapate 's sons , Kyawswa , emerged as king of Pagan in May 1289 . But the new " king " controlled just a small area around the capital , and had no real army . The real power in central Burma now rested with the three commander brothers .