The issue of Iran and its nuclear program has emerged as a top priority for the Obama Administration. The United States also sees a threat to U.S. interests posed by Iran's support for militant groups in the Middle East and in Iraq and Afghanistan. Tensions have been particularly elevated since Iran's late-December 2011 threat to try to choke off much of the world's oil supplies -a reaction to the imposition of significant sanctions against Iran's vital exports of oil. The heightened tensions follow three years in which the Obama Administration has assembled a broad international coalition to pressure Iran through economic sanctions while also offering sustained engagement with Iran if it verifiably assures the international community that its nuclear program is peaceful. The Administration uses indicators such as Iran's economic deterioration and its willingness to engage in new talks as evidence that policy is starting to work and should be given more time before any consideration of U.S. or other country military options. The Administration also perceives that the legitimacy and popularity of Iran's regime is in decline, although not to the point where the regime's grip on power is threatened. Over the past two years, the United States has …

Some officials of the Islamic Republic of Iran have recently renewed threats to close or exercise control over the Strait of Hormuz. This report explains Iranian threats to the Strait of Hormuz, and analyzes the implications of some scenarios for potential U.S. or international conflict with Iran, which include: outright closure of the Strait, harassment and/or infrastructure damage, and continued threat.

This report discusses the situation immediately following the completion of the U.S. withdrawal from Iraq on December 18, 2011, when relations among major political factions worsened substantially, threatening Iraq's stability and the legacy of the U.S. intervention in Iraq. It includes an overview of historical and current political, military, and governance issues as well as an analysis of Iraq in relation to the other nations in the region.