As the United States and Iran face off in the Persian Gulf, their asymmetric conflict risks spiralling out of control. Unless the rest of the world gets involved, the dangerous game both countries are playing could end in direct confrontation. Analysis by Volker PerthesMore

The nuclear deal with Iran is being celebrated both in the Middle East and in the West. It has, however, many critics too. Whether the hotly anticipated agreement will have a positive or a negative effect on the region, depends on political dynamics within Iran, says Volker Perthes, who outlines two possible scenariosMore

Are we underestimating the scope of Islamic State (IS) by referring to it as a "terrorist militia"? IS raises taxes, recruits soldiers, pays officials and is keeping oil wells in operation. According to Volker Perthes, it would be more accurate to call it a jihadist nation-building projectMore

The eruption of the Arab revolts put power relations among Middle Eastern countries in a state of flux, and both winners and losers have emerged. But, given that the strengths and weaknesses of most of the actors are highly contingent, the regional balance of power remains highly fluid. By Volker PerthesMore

Syrian oppositionists must recognize that the lack of decisive international action is not only the result of Russia and China vetoing any meaningful action in the Security Council, or NATO countries' unwillingness to enter into another war in the region. A commentary by Volker PerthesMore

If the creeping massacre of the Syrian population is to be stopped, now is the time to send out an unambiguous message, warns Volker Perthes, expert on the Near East and director of the German Institute for International and Security AffairsMore