Al-Mansour Mohammad Ibn-e Abi Amer was the mighty chamberlain of Hisham (Moayyad), the Omavite Caliph of Andalusia (caliphate 366-399). His period is simultaneous with the beginning of the Moslems' military weakness and the anarchic circumstances in the rule of Moslems over Andalusia, as the Christians dared to transgress the borderlines of, Andalusia, and plunder and kill people there. Al-Mansour is one of the great figures who was concerned about defending the realm of Moslems at that anarchic circumstance, and succeeded at striking repeatedly against the Christian government in the north of Spain. This article deals with the battles taken place between Al-Mansour and the Christian Spain
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