That's actually a matter of intense debate with the Druse and Beduin communities.
A large portion of Beduin men and a much smaller portion of other Palestinians volunteer.
At best they are scenery, urban counterparts of the peasants and Beduin whom Moshe Dayan romanticized in his memoirs.
Butler also seems to say that the non-Jewish population consists of three groups: Palestinians, Druse and Beduin.
At the same time, Butler's comment defines Druse and Beduin as not being Palestinian.
He drove the Beduin and other marauders across the frontiers of the desert and pushed the war into Syria itself.
The plains of the coast, which are now given over to malaria and Beduin thieves, were doubtless thickly populated and well sown.
The Amalekites had not as yet intermingled with the Ishmaelites, and their Beduin blood was still pure.
c.1400, from Old French bedüin (Modern French bédouin), from colloquial Arabic badawin "desert-dwellers," plural of badawi, from badw "desert, camp." The Arabic plural suffix was mistaken for part of the word. A word from the Crusades, it probably was lost in English and then reborrowed from French c.1600. As an adjective from 1844.