It is clear that the era of US hegemony in the Gulf, and the Middle East more broadly, is over. What is less certain is what security system will replace it and whether it will better serve regional security and US interests.
The Gulf is becoming a more crowded geopolitical space than ever, with external powers such as China, Russia and India increasing their involvement in the region to safeguard their economic interests, while local powers, most notably Saudi Arabia, the UAE and Qatar, are rising and pursuing a more independent foreign policy course.