Your challenge is to have a nation on the Iberian Peninsula, which is at the very least majority Islamic, survive until the present day.
Any POD before 1900 is acceptable.
Any POD before 1900 is acceptable.
Pelayo/Pelagius is defeated and killed by the Moors at any battle of your choice during his campaign against them. The integrity of Moorish control in Iberia is not threatened by Asturias and the consolidation of power is uninterrupted by constant war with the Christians. The Franks (or West Francia) has to lead the reconquista of Hispania instead of native Kingdoms, and the greater distance of command and the lack of great motivation that the Spaniards held leads to a stronger, less threatened Islamic control of at least Andalusia, perhaps all of Spain with the right subsequent butterflies.
Alternatively, you can go with the cliché of a victory at Tours for the Moors.
Well, even with Pelayo's victory, it still took the Reconquest another 7 centuries to complete [mainly because the individual states on both sides kept getting too bogged down re petty skirmishes with each other].
I guess the key would have been would there be a way for the Moors to keep the squabbles amongst Christian leaders going so they'd never have an Isabel and Ferdinand emerge to unite them to make the final push.
I'm not too sure how it's possible, at least for Arabs : they were pretty much widespread out in the Umayyad Empire and a fair number in Umayyad Spain came from Syrian junds that escaped defeat in North Africa.If there had been more Arabs or more Berbers.
Political situation in Spain didn't allow that much : Visigothic kingdom knew a vicious circle of dynastical unstability and political fragmentation, and contrary to Byzantium that beneficied from strong structures, Spain on the VIIIth was ready to fall into foreign hands (if Arabs didn't have showed up, Franks would have probably intervened as they did in 633).Maybe if the conquests had been more gradual, ala Anatolia there could have been a more concentrated assimilation and settlement.
Support from North Africa isn't much the problem, they regularly used Berber mercenaries and/or reinforcement (which brang problems, critically against the Arab ruling nobility, as Al-Mansur's military policies points out). Problem is that in order to keep such reinforcements, Al-Andalus had to intervene in North Africa (as it did against Fatimids).(or at least had support from North Africa).
For several reasons, it's just not possible.Moors make it into Francia, Reconquista is for Southern France instead of Spain.
Maybe someday we will get an Islamic Victory/Charles Dies at Tours TL that doesnt focus on a Islamic Conquest of France.