Is the Conquest of the Saracens a Religious Conquest?

Sophronius refers to the godless saracens that are causing trouble in the region. The word arab doesn't appear in the coron ever, but you do have reference to an uma an arabic which usually we translate as community. But does uma mean a people that's united by faith, or does it mean united by ethnic genealogy? This stuff is really all up in the error. Ah, i think one of the main questions that i think is, it maybe a perennial question for a for early islam an thereafteris, what is he relation of the arab of the arabs, to islam? How do they relate to it? Are