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This study explores how a nuclear-armed Iran would behave and what this would entail for the United States and its main regional allies. It analyzes the Islamic Republic's ideology, motivations, and national security doctrine; examines a nuclear-armed Iran's potential policies toward Saudi Arabia an... More

This study examines China’s interests in the Middle East and assesses China’s economic, political, and security activities there to determine whether China has a strategy toward the region and what such a strategy means for the United States. The study focuses on China’s relations with two of its ke... More

The partnership between the Islamic Republic of Iran and the People's Republic of China presents a unique challenge to U.S. interests and objectives, including dissuading Iran from developing a nuclear weapons capability. This paper examines factors driving Chinese-Iranian cooperation, potential ten... More

Turkey and Iran tend to be rivals rather than close partners, despite sharing certain economic and security interests. For instance, Turkey supports the opposition in Syria, while Iran supports the regime. Turkey is further concerned about a possible nuclear arms race in the Middle East. U. S. a... More

Israel and Iran have come to view each other as direct regional rivals. The two countries are not natural rivals; they have shared geopolitical interests, which led to years of cooperation both before and after the 1979 Islamic revolution. But their rivalry has intensified recently, particularly wit... More

As the commander in chief and highest political authority in Iran, the current Supreme Leader, Ayatollah Ali Khamenei, has played a critical role in the direction of the Islamic Republic of Iran. This monograph identifies three key factors that will shape succession of the next Supreme Leader and ou... More

Some time in the coming decade, Iran will probably acquire nuclear weapons or the capacity to quickly produce them. This monograph provides a midterm strategy for dealing with Iran that neither begins nor ends at the point at which Tehran acquires a nuclear weapon capability. It proposes an approach... More

This book surveys how Saudi-Iranian relations have unfolded in the Persian Gulf, Iraq, Lebanon, and Palestine since 2003, identifying the sources of rivalry and cooperation between the two powers. Understanding and leveraging this relationship will be a critical part of U.S. efforts to promote stabi... More

The U.S. ability to "read" the Iranian regime and formulate appropriate policies has been weakened by lack of access to the country and by the opacity of decisionmaking in Tehran. To improve understanding of Iran's political system, the authors describe Iranian strategic culture; investigate Iran's ... More

As Iran's nuclear program evolves, U.S. decisionmakers will confront a series of critical policy choices involving complex considerations and policy trade-offs. These policy choices could involve dissuading Iran from developing nuclear weapons; deterring Iran from using its nuclear weapons, if it we... More

In the months after the contested Iranian presidential election in June 2009, Iranians spoke out about the election using Twitter—a social media service that allows users to send short text messages, called tweets, with relative anonymity. This research analyzed more than 2.5 million tweets discussi... More

This study explores Iranian influence in Afghanistan and the implications for the United States after most U. S. forces depart Afghanistan in 2016. Iran has substantial economic, political, cultural, and religious leverage in Afghanistan. Although Iran will attempt to shape a post-2014 Afghanista... More

The challenge of deterring territorial aggression is taking on renewed importance, yet discussion of it has lagged in U.S. military and strategy circles. The authors aim to provide a fresh look, with two primary purposes: to review established concepts about deterrence, and to provide a framework fo... More