All Policy Analysis by Aaron Y. Zelin

The International Centre for the Study of Radicalisation offers its latest assessment of how many foreigners are fighting in Syria's civil war, which countries they hail from, and other key data.

Aaron Lund interviews the Institute's Richard Borow Fellow regarding the number, nature, and affiliations of the various foreigners who have joined Syria's conflict on one side or the other.

The latest umbrella organization for key rebel factions in Syria may not include U.S.-designated terrorist groups, but it does oppose many U.S. objectives.

Given the complexities and dynamics of the Syrian conflict, it is distinctly possible that Israel could be drawn into the fighting. Perhaps more important, the risk of spillover will likely extend years into the future, since the war's aftermath will not include near-term peace between Syria and Israel. How can

The ongoing war has changed not only Syrian society, but also the lives of many young men from other countries who are willing to die in the name of God.

Whether legitimate charges are announced or not, yesterday's arrest of a popular cleric will no doubt be another turning point in the relationship between the Tunisian government and local jihadists.

An original founder of the banned Salafi organisation reveals its true origins, the extent of its links with al-Nahda, and what lies "behind the curtain."

While potential pitfalls remain, Tunisia's future could be bright amid a region that appears to be regressing.

Any effort to counter the jihadists' growing hearts-and-minds campaign in Syria will require significant U.S. support for mainstream rebel forces.

This two-part PolicyWatch discusses how the jihadist group ISIS has gained a foothold in Syria. Part I outlined the group's recent successes; this installment describes how it could face popular discontent if it attempts to enforce its socially conservative agenda or commit high-profile abuses. Despite its successes in Syria so

Al-Qaida and its affiliates have been well-positioned to take advantage of the recent regional upheaval, some of which the group predicted years ago.

This two-part PolicyWatch assesses how ISIS has gained a foothold in Syria by learning from past jihadist mistakes in Iraq. Part I discusses the group's recent successes; Part II discusses jihadist mistakes in other countries and whether ISIS is repeating them. In August, the Islamic State of Iraq and al-Sham