Second Fitna: Pro-Alid forces defeated the Umayyad Caliphate at the Battle of Khazir, allowing them to take control of Mosul in present-day Iraq. Battle of Khazir: The Battle of Khazir took place in August 686 near the Khazir River in Mosul's eastern environs, in modern-day Iraq. The battle occurred during the Second Fitna between the Syria-based Umayyad Caliphate and the Kufa-based pro-Alid forces under Mukhtar al-Thaqafi. It ended with the Umayyad forces being routed and resulted in the expansion of Mukhtar's rule into the Mosul region. August 6, 686. Wiki link