As of February 2004, Yemen is divided into twenty governorates (muhafazat) and one municipality called "Amanat Al-Asemah" (the latter containing the capital, Sana'a)
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.
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.