Muhammad's territory and war with Abbasid Caliph Al-Nasir After the fall of the Seljuqs of Persian Iraq by Ala al-Din Tekish, the father of Sultan Muhammad, a severe enmity arose over the governance of Western Iran between Abbasid Caliph Al-Nasir and Ala al-Din Tekish. These conflicts continued during the reign of Sultan Muhammad. Therefore, during the reign of Sultan Muhammad, Western Iran became the Battleground of the Khwarazmi troops and the Caliphate troops. In order to destroy Khwarazmian Empire, Al-Nasir not only provoked Ghurid sultans and fanatical religious scholars from Transoxiana against him, but also asked help Nizari Ismaili state, Qara Khitai Empire and Mongol tribes to fight against Khwarazmian Empire. This action not only led to the overthrow of Khwarazmian Empire, but also the overthrow of the Abbasid government. Simultaneously with the coronation of Sultan Mohammad, the Ghurids captured the remaining lands of Ghaznavid empire and Khorasan cities such as Balkh city after the Overthrow of the Ghaznavids. Sultan Muhammad defeated the Ghurid dynasty in 1212 and captured Ghaznin in 1215, thus he extended the border of his territory to India from the east. In 1209, he conquered Mazandaran, which had been held by the Bavands for a long time. From Almost the middle of the 12th century, a group of Khitan people from North China, who were Buddhists, had formed a large government in the province of Kashgar and Hotan called Qara Khitai. In order to block their way, the Khwarazmians had agreed to pay them a ransom every year. This custom continued until the time of Sultan Muhammad, but he refused to pay tribute to the a "polytheist" king. Sultan Muhammad fought three times with the Qara Khitais. At last In 1210, the Sultan asked help from Kuchlug Khan, a prince of the Naimans and the leader of them, to defeat Qara Khitais. Kuchlug defeated them in Transoxiana and conquer Bukhara and Samarkand, he also managed to usurp the empire from his father-in-law Yelü Zhilugu. After conquesting Transoxiana, Kuchlug alienated both his subjects and the Khwarazmian empire with anti-Muslim measures. As a Mongol detachment led by Jebe hunted Kuchlug down, he fled; meanwhile, Muhammad was able to vassalize the territories of Balochistan and Makran in modern-day Pakistan and Iran, and to gain the allegiance of the Eldiguzids. After extending the borders of Khwarazmian Empire from the north-east and east to Kashgar and the Sindh, Sultan Muhammad decided