The Arabian Peninsula (in Arabic: شبه الجزيرة العربية šibh al-jazīra al-ʻarabīya or جزيرة العرب jazīrat al-ʻarab) is a peninsula in Southwest Asia at the junction of Africa an Asia consisting mainly of desert. The area is an important part of the Middle East and plays a critically important geopolitical role because of its vast reserves of oil and natural gas.