Deleted member 67076
Personally, I would disagree. The Saadi Sultanate had a professional army, and the later Alouite dynasty during the 1600s managed to field a standing army of near 100,000 troops. Most of them being Janissary style corps from Sahelian troops.It's not only about more men, it's more resources. The battle of alcacer quibir was a deep tactical error commited by King Sebastian, that ended up costing, presumably, his life and his kingdom. Such a dramatically disastrous battle must not be taken as a proof that north africa can't be conquered. At that time, it all comes to logistics and the degree of discipline and professionalization of a nation's army, including the resources it can muster. In all of these prospects,as I've said before, Spain has the absolute upper hand over the moorish sultanates, especially if there are no Habsburg distractions in their way.
They don't need to. They have Ghazi soldiers and self sufficient Berber tribes that can be galvanized into attacking infidel troops (Which they historically were) to bleed the invaders dry. If anything, sending them off to fight the invaders would strengthen the Sultantes through a "Rally around the flag effect" as it would remove a major pressure to centralization and strengthen the legitimacy of the state through warfare.The maghreb is far from this unconquerable landmass you speak of.
Do these sultanates, by any chance, have endless manpower and peasants to tax as much as they like? Surely, there are also no internal divisions that can be exploited, as the north african people were fully united at that point. Even if they manage to repel the spanish initially, at what cost would this success come?
Second, geography helps the Maghreb immensely. Morocco alone is the size of California, Algeria 3x the size of Texas, and Tunisia is the size of Honduras. This is mountainous, rugged terrain by and large where its difficult to patrol and centralize. (Which is why the region frequently splintered and reformed) To conquer all of this is no easy task.
The same question can be asked to Spain. The battle of Lepanto was largely Pyrric IMO, and Spanish a, ttempts to seize the Maghreb involved significant numbers of troops. Oran had around 15,000; Bougie 6000; Djerba 60 galleys and supporting craft' Siege of Malta 15,000 troops; etc. This isn't an easy commitment, even if the wars in Europe are avoided.
If the Turks get involved then there's no way Spain is taking the place. Without the Hapsburgs (or more precisely, the Netherlands) Spain and Austria would initially be weaker. The latter would lack the funds needed to keep the Turks at bay and the former is going to have much less administrators, access to credit, mercenaries, etc.In the end, conquering north africa will not be easy, but it is nowhere near impossible. A smaller nation like portugal had fewer chances to accomplish such a feat, but a catholic juggernaut such as Spain would likely attempt and succeed in doing so. The only chance the berbers have is to ask for the help of the turks, which would have been kept in check more frequently by a dinastically cohesive Spain.