This report discusses the response of the non-U.S. parties to the Joint Comprehensive Plan of Action (JCPOA) to the Trump Administration's decision to cease implementing U.S. commitments under the agreement. The other parties, which include the United Kingdom, France, Germany, Russia, China, the European Union (EU) and Iran, opposed the U.S. move and have undertaken intensive negotiations to try to preserve the accord.

The Bush Administration has pursued several avenues to attempt to contain or end the potential threat posed by Iran, at times pursuing limited engagement, and at other times leaning toward pursuing efforts to change Iran’s regime. Some experts believe a potential crisis is looming over Iran’s nuclear program because the Bush The administration is skeptical that efforts by several European allies to prevent a nuclear breakout by Iran will succeed, although the Administration announced steps in March 2005 to support those talks. U.S. concerns have been heightened by the victory of Mahmoud Ahmadinejad, an admitted hardliner, in Iran’s presidential election on June 24, 2005.

This report provides an overview of Iran's foreign policy, which has been a subject of numerous congressional hearings and of sanctions and other legislation for many years. The report analyzes Iranian foreign policy as a whole and by region.