All Policy Analysis by Simon Henderson

The White House's bottom line for Camp David is to limit public condemnation of the emerging deal with Iran, but the Saudi king's decision not to attend signals persistent Gulf Arab disquiet with U.S. diplomacy.

This week's Gulf Arab summit in Riyadh and Secretary Kerry's May 8 meeting with GCC foreign ministers in Paris will be crucial to fixing the agenda for next week's Camp David summit.

The latest restructuring in the Saudi hydrocarbon sector could mean new policies for the world's largest oil exporter.

The appointment of a new crown prince and the promotion of the king's son to deputy crown prince will likely increase tension in the Saudi royal family.

As Prince Muhammad bin Salman's proactive approach to regional affairs becomes clearer, the novice defense minister could lead the kingdom to overreach in Yemen.

Click to download high-resolution map [PDF] This map adapted from information contained in Nuclear Iran: A Glossary.

A key element, if not the key element, in the nuclear negotiations with Iran, appears to be the number and type of centrifuges which Iran will be able to retain. Curiously, part of the discussion can be illustrated using a children's top. High-speed centrifuges are used to enrich uranium. "Enriching"

With a new king and a young, untested defense minister, Riyadh has plunged headlong into war in Yemen, with nothing less at stake than the kingdom's leadership of the Arab world.

The evacuation of U.S. Special Forces from their base in southern Yemen on Friday because al Qaeda had taken over the nearby city of al-Houta is hard to spin as anything but a major setback for the war on terror... Read the full article on the Wall Street Journal website.

Understand the details of debates over Iran's nuclear program and the international response with this interactive glossary that translates technical jargon into language comprehensible even to the layperson.

While Prime Minister Netanyahu will be focusing on Iran during his planned visit to Washington next week, Israel's regulatory interference in the exploitation of gas reserves will likely intrude on the agenda.

The president should use tomorrow's visit to channel Qatar's diplomatic energies in directions more in line with U.S. regional policy.

Tuesday's meeting in Riyadh between King Salman and Pakistan's top military commander will revive speculation of a secret nuclear agreement to counter any Iranian nuclear threat.

Even if a political timetable can be arranged and President Mansour Hadi can hold on, further destabilization appears inevitable.

The latest shakeup among Saudi decisionmakers will require Washington to work on new relationships in Riyadh and perhaps reconfirm understandings reached at Tuesday's summit.

Riyadh is entering unknown territory with its succession system at a time when threats and distractions have sprung up on multiple fronts.