History of United States–Middle East economic relations
The Middle East has been a region of geopolitical and economic significance to the world far before American involvement in the area. This was largely because the “Middle East contained or bordered on the land bridges, passageways, and narrows – the Sinai isthmus, the Caucuses, the Strait of Gibraltar, the Dardanelles, Bab el Mandeb, and the Strait of Hormuz – and the sheltered seas – the Mediterranean, the Black Sea, the Caspian Sea, the Red Sea, and the Persian Gulf – that provided the best routes connecting the different extremities of the vast Eurasian/African continent.” The value of being a prominent player in the region was therefore obvious to the United States as well as to several other Western powers including Great Britain and France.
Source: Wikipedia — History of United States–Middle East economic relations (CC BY-SA 4.0)