- Capital: Sanaa
- Population: 33.322.000
- Surface: 527.970 km2
- Devise: le riyal yéménite
- Religion: Majorité Islam
- Appartient à: Ligue arabe, FMI, ONU
- Capital: Mogadiscio
- Population: 17.065.581
- Surface: 637.660 km2
- Devise: le shilling somalien
- Religion: Majorité Islam
- Appartient à: ACP, Ligue arabe, IGAD, ONU, UA