First Qarmatian invasion of Egypt

The First Qarmatian invasion of Egypt took place in 971, when the Qarmatians of Bahrayn unsuccessfully invaded Egypt, which had recently been conquered by the Fatimid Caliphate. Both the Qarmatians and the Fatimids were offshoots of the Isma'ili sect of Shi'a Islam, but belonged to different and rival branches. Following the takeover of Egypt under the general Jawhar in 969, the Fatimids began their expansion into the Levant. There they confronted the Qarmatians, who in previous years had raided and extracted tribute from the regional potentates. In order to stop the Fatimid advance, the Qarmatians, led by al-Hasan al-A'sam, joined in a league with other regional powers, including the Sunni Abbasid caliph in Baghdad. After defeating and killing the Fatimid commander Ja'far ibn Fallah at Damascus in August 971, the Qarmatians and their Bedouin allies marched south. A Fatimid relief army marching to assist Ibn Fallah withdrew to Jaffa where it was blockaded, while the main Qarmatian army invaded Egypt. The diversion of the Qarmatian forces into the Nile Delta in support of local revolts gave Jawhar the time to mobilize his remaining forces and prepare defences in the form of a trench and wall at Ayn Shams, just north of Cairo, then still under construction as the new Fatimid capital. At a battle north of the city on 22 and 24 December, Jawhar defeated the Qarmatians and forced them to withdraw from Egypt in disorder. After the Qarmatians quarreled with their Bedouin allies, the Fatimids were able to reoccupy Ramla, but this was short-lived; by the summer of 972, Palestine was again under Qarmatian control. On the other hand, the rebellions in Egypt were suppressed, and the Fatimid caliph al-Mu'izz was able to move his capital from Ifriqiya to Cairo in June 973. A second invasion followed in 974, which was also defeated, ending the Qarmatian threat for good, and paving the way for the Fatimid expansion into the Levant.