This report provides background information on Iran's support to armed groups and Iranian political influence and specifically discusses the relationship between Iran and Iraq.

This report analyzes U.S. and international sanctions against Iran and provides examples, based on a wide range of open source reporting, of companies and countries that conduct business with Iran.

This report analyzes U.S. and international sanctions against Iran and provides some examples, based on open sources, of companies and countries that conduct business with Iran. CRS has no way to independently corroborate any of the reporting on which these examples are based and no mandate to assess whether any firm or other entity is complying with U.S. or international sanctions against Iran. The sections are grouped by function, in the chronological order in which the themes have emerged

This report analyzes U.S. and international sanctions against Iran and provides examples of companies and countries that conduct business with Iran, based on a wide range of open-source reporting.

This report discusses the reasons that Iran is considered a threat to U.S. security, including Iran's nuclear program, involvement with terrorist organizations, and involvement with neighboring countries' local governments. The report also discusses ways which the U.S. hopes to modify Iran's behavior with sanctions, and the effectiveness of these sanctions.

This report discusses Iran's national security policy. Some experts forecast that Iran's foreign and defense policies might shift after international sanctions were eased in January 2016 in accordance with the July 2015 multilateral nuclear agreement with Iran (Joint Comprehensive Plan of Action, JCPOA).

This report discusses the Iran nuclear agreement that was made on July 14, 2015 and the lifting of sanctions related to their nuclear weapons programs which occurred on January 16, 2016. Iran's obligations under the agreement and Congressional discussion of adjustments to the agreement or withdrawal are outlined.

This report provides a brief overview of Iran's nuclear program and describes the legal basis for the actions taken by the International Atomic Energy Agency's (IAEA) board and the Security Council.

This report identifies the legislative bases for sanctions imposed on Iran, and the nature of the authority to waive or lift those restrictions. It comprises two tables that present legislation and executive orders that are specific to Iran and its objectionable activities in the areas of terrorism, human rights, and weapons proliferation.