Arab–Byzantine wars: The Abbasid army departed Raqqa in northern Syria to begin an invasion of Byzantine-controlled Asia Minor. Abbasid invasion of Asia Minor (806): The 806 invasion of Asia Minor was the largest of a long series of military operations launched by the Abbasid Caliphate against the Byzantine Empire. The expedition took place in southeastern and central Asia Minor, where the two states shared a long land border. June 11, 806. Wiki link