Formerly divided into two nations, the People's Democratic Republic of Yemen and the Yemen Arab Republic, the Republic of Yemen occupies the southwest tip of the Arabian Peninsula on the Red Sea opposite Ethiopia and extends along the southern part of the Arabian Peninsula on the Gulf of Aden and the Indian Ocean. Saudi Arabia is to the north and Oman is to the east. The country is about the size of France. A 700-mile (1,130-km) narrow coastal plain in the south gives way to a mountainous region and then a plateau area.
