All Policy Analysis by Matthew Levitt

From dissolving the group’s caliphate to killing its leader, the coalition has notched major achievements, but all that work may be for naught if the United States and other members do not renew their cooperation at the upcoming ministerial meeting.

The back-to-back deaths of the IS leader and allegedly one of his likely successors mark a significant counterterrorism accomplishment, but neither high-profile deaths nor the territorial loss of the so-called caliphate will translate into the organization’s defeat.

As demonstrators rail against economic problems, corruption, and sectarianism, the group’s role in undermining the public’s financial and physical security is coming under greater scrutiny.

Twenty-five years later, some of the perpetrators hold senior positions within the Iranian and Hezbollah leadership, where they continue to oversee international terrorist plots.

If hostilities break out with the United States, Tehran may try to minimize risk to its most important assets in the Middle East by drawing on black ops units further abroad instead.

The trial of a senior operative reveals the extent of the terrorist organization’s reach in the United States and Canada.

Britain's recent decision to designate the entire group as a terrorist entity was a step in the right direction, but now the EU needs to follow suit.

The handful of new tools in question could expose Iraqi officials to sanctions and criminal liability given Baghdad's energy dependency on Iran.

The administration's message is not a new one, the FTO listing does not add much additional pressure, and the resultant risks to U.S. interests are significant.

Three experts on countering violent extremism discuss a new book and offer ideas for how government, civil society, business, and citizens can act on this persistent policy challenge.

A February visit to Tehran by Syrian president Bashar al-Assad showcased just how close the Qods Force-Hezbollah alliance is when it comes to acquiring weapons.

Unless Washington changes its mixed message on foreign fighters and helps its European allies find practical solutions, it may soon face another mass outbreak of seasoned operatives from Syria.

All eyes will be on the secretary’s speech this week, so striking the right balance between President Trump’s domestic imperatives and the realities of regional policy is crucial.

If the Syria withdrawal proves inevitable, officials should push to phase the departure, keep U.S. forces at Tanf, maintain the air campaign, forge a counterterror agreement with Turkey, and take other fallback measures.

Thirty-five years of historical precedent make clear that Tehran will lash out if it feels cornered.