Situated on the Arabian Peninsula in Southwest Asia, Yemen is a Middle Eastern country comprised of the formerly separate republics of North and South Yemen.
The Tihamah is a nearly 419-kilometre (260 mi) long, semidesert coastal plain that runs along the Red Sea and is part of the Arabian Peninsula coastal fog desert ecoregion.
Yemen is a presidential republic with a bicameral legislature. Under the constitution, an elected President, an elected 301-seat Assembly of Representatives, and an appointed 111-member Shura Council share power. The President is the head of state, and the Prime Minister is the head of government.