1.) they live in southwest Asia and by rivers and watevr areas.
2.) Islam under the House of Saud is very severe and women are deprived of most of what we in the West think of a "civil rights"; they can't vote, they can't hold jobs where they might be over men, they can't drive, they can't travel without male escorts, they are low-status persons for purposes of inheritance, suits in court; their clothing is restricted to shapeless garments and they remain their whole lives under the control of some male relative, be it father, brother, husband or son.
3.) The Arabian Peninsula was covered with desert.
4.)The Oil Industry is the most demanding work sector in both countries.
5.)Water
6.)The tigris and euphrates rivers provide fertile land for farming