The Arabian Peninsula (i.e. Arabia) is the birthplace of Islam and the first stage for the survival and development of the Arabs. Located in the southwest of Asia, this stage is the largest peninsula in the world, with an area equivalent to a quarter of Europe and a third of the United States. Surrounded by the sea on three sides, the Arabian Peninsula is located at the crossroads of transportation and is strategically important. It is bordered by the beautiful Persian Gulf and the Gulf of Oman to the east, the vast Indian Ocean to the south, the Red Sea to the west, which is as narrow as a ribbon, and the fertile green crescent to the north. The Red Sea and persian Gulf on both sides of the peninsula, together with Egypt and the fertile crescent, form an important natural corridor connecting east-west traffic. The Gate of the Red Sea, the Bab el-Mandeb Strait, which controls access from the Mediterranean Sea to the Indian Ocean via the Suez Canal and the Red Sea, and the Strait of Hormuz, the gateway to the Persian Gulf, is the choke point for eurasian traffic. The Arabian Peninsula stands like an untamed war horse between Asia and Africa, looking up at Europe on the azure shores of the Mediterranean Sea, ready to go.
The natural landscapes such as the landform, climate and products of the Arabian Peninsula constitute a unique set on this stage, and have become the natural props for the Arabs' historical dramas. Geologically, the Arabian Peninsula was originally a continuation of the Sahara Desert, later separated by the Nile Valley and the Deep Red Sea. In terms of overall topography, the Arabian Peninsula is basically a vast plateau, higher in the southwest, gradually lowering to the northeast and sloping in a stepped shape. In terms of landforms, there are mainly mountains, plains, plateaus, deserts and so on. From the Red Sea coast of the Arabian Peninsula, through the southern coast, to the southeastern Gulf of Oman coast, there are continuous mountains. The western mountains are famous for the Sierra Mountains, meaning "top", stretching from Hijaz (a translation of "Hejaz", meaning "interval", because it separates the Red Sea Plain from the Nadid Plateau, hence the name) to Yemen. Most of the Sierra Mountains are muddy and have no grass. Southern mountains and eastern mountains
