- Capital: Sanaa
- Population: 28,498,687
- Surface Area: 527,970 km2
- Currency: Yemeni rials
- Belongs to: Arab League, IMF, UN
- Capital: Damascus
- Population: 16,906,283
- Surface Area: 185,180 km2
- Currency: Syrian pounds
- Religion: Mostly Islam
- Belongs to: Arab League, IMF, UN