Khwārazmshāhids Policy against Caliph Al-Nāsser Strategy to Regain Political Power of the Caliphate and Its Consequences in Irān

With the establishment of the Caliphate foundation, Iranians disappointed with accessing their own political aims through cooperating with the Caliphate, gradually started to reconstruct their kingdom regime and began a competition that somehow had a tough hostility towards Abbasids. In such a situation, the Abbasids, especially the Caliph al-Nasser, followed the process of recovering the Caliphate political hegemony, while and the Khwarizmi’s, in parallel, were planning a rigid dominance on Islamic world’s eastern regions including Baghdad, the capital of the Caliphate, to restrict its power in religious affairs. But after several battles between the armies of both sides, Sultan Muhammad Khwārazmshāh failed finally. This article attempts to recognize and analyze the motives and causes of the contrast that existed between these two power centers and their subsequent political and military consequences. Keywords: Abbasid Caliphate, Al-Nāsser Ledin-Allah, Khwārazmshāh, Sultān Muhammad, the Ismāilia.