A deal between Iran and the P-5+1 (the five permanent members of the U.N. Security Council plus Germany) was reached Saturday night. The Iranians agreed to certain limitations on their nuclear program while the P-5+1 agreed to remove certain economic sanctions. The next negotiation, scheduled for six months from now depending on both sides' adherence to the current agreement, will seek a more permanent resolution. The key players in this were the United States and Iran. The mere fact that the U.S. secretary of state would meet openly with the Iranian foreign minister would have been difficult to imagine a few months ago, and unthinkable at the beginning of the Islamic republic.

The U.S. goal is to eliminate Iran's nuclear weapons before they are built, without the United States having to take military action to eliminate them. While it is commonly assumed that the United States could eliminate the Iranian nuclear program at will with airstrikes, as with most military actions, doing so would be more difficult and riskier than it might appear at first glance. The United States in effect has now traded a risky and unpredictable air campaign for some controls over the Iranian nuclear program.

The Iranians' primary goal is regime preservation. While Tehran managed the Green Revolution in 2009 because the protesters lacked broad public support, Western sanctions have dramatically increased the economic pressure on Iran and have affected a wide swath of the Iranian public. It isn't clear that public unhappiness has reached a breaking point, but were the public to be facing years of economic dysfunction, the future would be unpredictable. The election of President Hassan Rouhani to replace Mahmoud Ahmadinejad after the latter's two terms was a sign of unhappiness. Supreme Leader Ali Khamenei clearly noted this, displaying a willingness to trade a nuclear program that had not yet produced a weapon for the elimination of some sanctions.

The logic here suggests a process leading to the elimination of all sanctions in exchange for the supervision of Iran's nuclear activities to prevent it from developing a weapon. Unless this is an Iranian trick to somehow buy time to complete a weapon and test it, I would think that the deal could be done in six months. An Iranian ploy to create cover for building a weapon would also demand a reliable missile and a launch pad invisible to surveillance satellites and the CIA, National Security Agency, Mossad, MI6 and other intelligence agencies. The Iranians would likely fail at this, triggering airstrikes however risky they might be and putting Iran back where it started economically. While this is a possibility, the scenario is not likely when analyzed closely.

While the unfolding deal involves the United States, Britain, France, China, Russia and Germany, two countries intensely oppose it: Israel and Saudi Arabia. Though not powers on the order of the P-5+1, they are still significant. There is a bit of irony in Israel and Saudi Arabia being allied on this issue, but only on the surface. Both have been intense enemies of Iran, and close allies of the United States; each sees this act as a betrayal of its relationship with Washington.

The View from Saudi Arabia

In a way, this marks a deeper shift in relations with Saudi Arabia than with Israel. Saudi Arabia has been under British and later American protection since its creation after World War I. Under the leadership of the Sauds, it became a critical player in the global system for a single reason: It was a massive producer of oil. It was also the protector of Mecca and Medina, two Muslim holy cities, giving the Saudis an added influence in the Islamic world on top of their extraordinary wealth.

It was in British and American interests to protect Saudi Arabia from its enemies, most of which were part of the Muslim world. The United States protected the Saudis from radical Arab socialists who threatened to overthrow the monarchies of the Arabian Peninsula. It later protected Saudi Arabia from Saddam Hussein after he invaded Kuwait. But it also protected Saudi Arabia from Iran.