The Arabian Peninsula is a peninsula in the Middle East, bounded to the north by Jordan and Iraq, to the east by the Persian Gulf and the Gulf of Oman, to the south by the Arabian Sea, and to the west by the Red Sea and Gulf of Aqaba. The Peninsula comprises the nations of Kuwait, Saudi Arabia, Qatar, the United Arab Emirates, Oman and Yemen. In addition, the island nation of Bahrain is connected to the peninsula by a causeway. Most of the land area of the peninsula is desert or semi-desert, and it is mountaious in the west and south. It has significant hydrocarbon reources.
Arabia has long served as a junction for travelers from Europe, Africa, and Asia. The region is dominated by Saudi Arabia, a Muslim theocracy. Most Arabs are Muslims.
Arabia may refer also to the Arab world. South Arabia refers to the region known as Yemen.