Counterterrorism expert Daniel L. Byman says Hezbollah is "the most powerful single political movement in Lebanon" and remains a potent guerrilla force.

The prospects for a comprehensive nuclear deal with Iran before a looming deadline look promising, but the United States and its negotiating partners still must clear major obstacles, says expert Suz…

After the disqualification of popular former president Rafsanjani, it’s unclear which of the remaining, mostly conservative candidates will triumph in the June presidential election, says expert Fari…

Another extension to the Iranian nuclear talks could be worked out in November but Iran’s desire to have a large-scale uranium enrichment program remains a major obstacle, says expert Gary Samore.

Peter N. Bouckaert, a senior researcher for Human Rights Watch who has been traveling in Lebanon and Syria, says both Hezbollah and Israel have been committing "war crimes" in striking against civili…