That is easily said. It also ignores the fact that North Africa has largely hostile Islamic Arab/Berber population who will not sit down an resist as hell. The reconquista also needs Christians to populate the newly aquired lands against hostile Muslims,
I've wondered how it might lead to a Conquista had the Berbers remained 'Christian' and not reached a stable accommodation with the Muslims of the region? That is the Berbers ally with Spain in their own effort at Reconquista of NW Africa