Since the end of the Cold War, a new strategic landscape has appeared in the Middle East. No longer dominated by a U.S.-Soviet rivalry, this new landscape is dominated by U.S.-Iranian confrontation. In this struggle, the United States’ most important Arab ally, Saudi Arabia, plays a key role. As the Obama administration policies allow Iran to run out the clock on getting a nuclear weapon, it would appear from its recent policy moves that it believes Riyadh is primarily concerned with the Arab-Israeli conflict. While this is a concern in Saudi Arabia, it is far and away not the primary one. Indeed, there is no doubt that in its foreign policy Riyadh is much more worried about Iran’s rise as a key regional actor.