Oman is a country in Southwest Asia on the coast of the Arabian Sea, Gulf of Oman, and the Persian Gulf. Neighboring countries include Saudi Arabia, United Arab Emirates, and Yemen. Oman has a strategic location on the Arabian Peninsula adjacent to the Strait of Hormuz, a vital transit point for crude oil. The geography of Oman is mountainous and arid. The government system is a monarchy; the chief of state and head of government is the sultan and prime minister. Oman is a member of the League of Arab States (Arab League) and the Gulf Cooperation Council (GCC).