Saudi Arabia: Geography, Borders, and Strategic Position in Western Asia

The Kingdom at the Crossroads of Continents

Saudi Arabia occupies roughly 80% of the Arabian Peninsula, making it the largest country in the Middle East and the 12th largest globally. Its location in Western Asia places it at a historic nexus of trade, pilgrimage, and geopolitics.

Land Borders: Seven Neighbors

The Kingdom shares land borders with seven nations:

• North: Jordan and Iraq
• Northeast: Kuwait and Qatar (the latter via a short land border and maritime boundary)
• East: Bahrain (connected by the 25 km King Fahd Causeway)
• Southeast: Oman
• South: Yemen

These borders were largely defined by 20th-century treaties (e.g., Uqair Protocol 1922, Treaty of Jeddah 2000 with Yemen).

Coastlines: Two Seas, Strategic Chokepoints

• Red Sea (West): ~1,840 km coastline. Provides access to the Suez Canal and Mediterranean via the Bab el-Mandeb strait.
• Persian Gulf (East): ~560 km coastline. Home to the world's largest oil export terminals (Ras Tanura, Ju'aymah) and the Strait of Hormuz chokepoint.

Terrain and Climate

The landscape ranges from the humid Tihama coastal plain on the Red Sea, to the towering Hejaz and Asir mountains (Jabal Sawda, ~3,000 m), to the vast Najd plateau, and the hyper-arid Rub' al Khali (Empty Quarter) in the southeast. Climate is predominantly hyper-arid desert; only the southwestern highlands receive significant rainfall.

Strategic Significance

Saudi Arabia's geography underpins its role as the world's largest oil exporter, guardian of Islam's two holiest cities (Mecca and Medina), and a pivotal player in Red Sea and Gulf security architectures.