The Jews of Morocco, Tunisia, Algeria, Egypt, Turkey are the descendants of the Iberian Jews who fled from Spain in 1492 and from Portugal in 1496 and they went to these Muslim countries mentioned here and they began to live there for 500 years. the Jews of Yemen are most certainly genuine Arab Jews who are Yemenis in everything except that their religion is Judaism. I do not know about the Jews of Syria and Lebanon because I have never seen a picture of any Jews from these countries. It is possible that the Jews of Syria and Lebanon are the Ashkenazi who went to live there after they were occupied by the French after World War I.