This timeline traces Iran's missile progress since 1984. Since the last update, Iran fired missiles in two wars against Israel and the United States, launched an intermediate-range ballistic missile for the first time, suffered damage to its production facilities, and received repeated shipments of missile propellant ingredients from China.

Iran has one of the largest and most diverse missile arsenals in the Middle East. This table presents the known capabilities of Iran's major missile systems.

A running timeline of important events in Iran's nuclear program from 1967 to the present day, including the country's secret effort to build nuclear weapons in the early 2000s, the 2015 nuclear deal, and the 2025 U.S. and Israeli strikes on Iran's nuclear facilities.

The international community has long raised concerns about the dual-use potential of Iran's nuclear infrastructure, which could be used to make fuel for reactors or weapons. Israel and the United States acted on those concerns, carrying out airstrikes that caused serious damage to a number of Iranian nuclear facilities.

This background report provides an overview of Iran's nuclear history including past weaponization efforts, its nuclear-related infrastructure, key institutions and personnel, foreign assistance, and sanctions and export controls targeting the nuclear program.

Iran's arsenal of guided missiles is the largest and most diverse in the Middle East. The essay provides an overview of Iran's current capabilities, identifies key entities supporting the effort, explains where Iran has found foreign help, and reviews efforts to hinder Tehran’s progress.

This chronology tracks chemical weapon-related developments involving Iran, from its accession to the Geneva Protocol in 1929, through the use of chemical weapons during the Iran-Iraq War, Iran's CW-related procurement from foreign suppliers, and U.S. sanctions targeting entities involved in these procurement efforts.

This essay describes the origins of Iran's chemical weapon (CW) program during the Iran-Iraq war, Iran's efforts to establish an indigenous CW production capability through foreign procurement, its CW-related transfers, and its adherence to the Chemical Weapons Convention (CWC).