- Capital: Nouakchott
- Population: 4,403,319
- Surface Area: 1,030,700 km2
- Currency: Ouguiya (1 EUR=44.1100 MRO)
- Religion: Mostly Islam
- Belongs to: ACP, AMU, Arab League, IMF, UN, AU
- Capital: Doha
- Population: 2,781,677
- Surface Area: 11,610 km2
- Currency: Riyals (1 EUR=4.4131 QAR)
- Religion: Mostly Islam
- Belongs to: ACD, Arab League, GCC, IMF, UN, OPEC