All Policy Analysis by Simon Henderson

Now that the nuclear deal is off, Iran’s next steps will be shaped at least in part by the technical capabilities of its enrichment program and related efforts.

A guide to the key jargon and technical minutiae underlying Netanyahu’s troubling accusations against Iran.

His unexpected approach is probably a consequence of the simple judgment that the bickering leaders have a more important issue to focus on: Iran.

Washington should continue looking past the public statements of the Arab League, an institution more famous for brakes than breakthroughs.

Whatever the summit's outcome, perhaps the most important question for the Arab League's future is when dynamic and confrontational young leaders like MbS will fully take the reins.

The summit could yield tentative agreements on any number of issues, from Arab-Israeli peacemaking to energy and arms deals.

The kingdom's discovery of a huge new oil field could change the economic and political fortunes of a key Gulf ally.

The crown prince's recent remarks imply that the United States may not fully appreciate the threat posed by Iran, much like the international community's prewar attitude toward Nazi Germany.

Iran will likely dominate the crown prince's Washington conversations with President Trump and other officials.

President Trump's personal intervention to end the split between U.S. Gulf allies will be a major test of his authority—and his patience.

Ahead of a Saudi royal visit to London, British officials are taking a circumspect, historically curious approach in their comments about the kingdom.

Riyadh's continuing closeness to Pakistan could prevent Washington from allowing the export of nuclear technology to the kingdom.

U.S. pressure to end the war may have spurred Riyadh to reorganize its Defense Ministry and shake up its military leadership.

If princes and commentators want to make political points with history, historians should debate the merits of what is being said.

This week's meetings indicate a substantial U.S. effort may be under way to end the Arab diplomatic rift over Qatar.

The fate of the fabulously wealthy but politically marginalized prince has become much more significant amid the kingdom's campaign to fight corruption and open up its economy.