Hey Qilue,

You can go after anything you want if you think you can take it.

The only thing to consider is that warring against another Catholic faction if liable to get you excommunicated by the Pope.

Conveniently, the Alhomeds should be no problem.

Why not launch a Crusade against one of their provinces.

March it through a couple of your Catholic Allies Provinces and you will pinch some of their best troops..

Azrael