- Capital: Nouakchott
- Population: 4.614.974
- Surface: 1.030.700 km2
- Devise: l’ouguiya (1 EUR=43,9500 MRO)
- Religion: Majorité Islam
- Appartient à: ACP, UMA, Ligue arabe, FMI, ONU, UA
- Capital: Riyad
- Population: 32.175.000
- Surface: 2.149.690 km2
- Devise: le riyal saoudien (1 EUR=4,1614 SAR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, G20, CCG, FMI, ONU, OPEP