Extreme instability and mistrust are heightening tensions in the Persian Gulf, especially between Shiite Iran and Sunni Saudi Arabia. America’s appetite for military engagement has waned after nearly two decades of war and the region lacks any form of collective security framework, leaving a considerable security vacuum. The Gulf states’ overtures to Israel are part of an effort to salvage America’s security commitment to the area while shoring up a relationship that can mitigate Tehran’s rising influence.