- Capital: Sanaa
- Population: 33.322.000
- Surface: 527.970 km2
- Devise: le riyal yéménite
- Religion: Majorité Islam
- Appartient à: Ligue arabe, FMI, ONU
- Capital: Doha
- Population: 3.063.000
- Surface: 11.490 km2
- Devise: le rial du Qatar (1 EUR=3,8187 QAR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU, OPEP