This month’s newsletter features a new episode of Iran Watch Listen, a podcast by the Wisconsin Project on Nuclear Arms Control. We sat down with Wolf-Christian Paes, an expert on arms and maritime security, to discuss Iran’s support for the Houthi rebel group, the ways in which arms are smuggled into Yemen, and what can be done to stop the smuggling.

This month’s newsletter features an analysis of two recent U.S. interdiction operations off the coast of Yemen. The operations, which turned up components of ballistic and anti-ship missiles and waterborne drones, present compelling evidence that Iran continues to violate the United Nations arms embargo on the Houthis. The newsletter also features new and updated background resources on Iran’s missile program, including an extensive image library.

This month’s newsletter features a roundtable report on applying the lessons from North Korea to address Iran's nuclear program. The report summarizes the conclusions of an expert panel discussion convened by the Wisconsin Project and offers ideas for diplomacy, threats, sanctions, and other tools that may be used to stop or limit a nuclear weapons program.

This month’s newsletter features a report on the history of Iran’s nuclear program, containing an overview of nuclear infrastructure, undeclared sites, key institutions and personnel, and the foreign assistance Iran has received, as well as international sanctions and export controls targeting the nuclear program.

This month’s newsletter features an in-depth report on the private companies involved in Iran’s military drone program. While state-owned companies and the armed forces play leading roles in designing and building Iranian drones, privately-owned companies are making a valuable but largely overlooked contribution as well, and their role continues to grow.

This month’s newsletter features a policy brief on the next steps for European sanctions following the Joint Comprehensive Plan of Action’s (JCPOA) Transition Day earlier this month, which lifted U.N. Security Council restrictions on Iran’s missile program. Importantly, the EU and UK decided not to lift their own sanctions as stipulated by the deal, but more action by Europe is needed to restore the sanctions convergence with the United States that prevailed prior to the JCPOA.

This month's newsletter features updates to a report estimating how quickly Iran could enrich enough uranium to fuel a small nuclear arsenal as well as a table tracking Iran's centrifuge models and their deployment at declared uranium enrichment sites. Both resources reflect new data from the most recent International Atomic Energy Agency (IAEA) reports.

This month's newsletter features an update to a table that details Iran's missile arsenal, the largest in the Middle East. Since the last update, Iran has unveiled the solid-fueled "hypersonic" Fattah missile as well as a new variant of the liquid-fueled Khorramshahr, Tehran's longest-ranged missile. Iran also claims to have deployed the Haj Qassem, a solid-fueled ballistic missile with a 1,400-kilometer range.

This month’s newsletter features a look at a recent U.S. indictment of Chinese national Xiangjiang Qiao. Qiao is an associate of Li Fang Wei (Karl Lee), a major supplier of critical components to Iran’s missile program from 2006 until at least 2014. Although Lee has garnered less attention in recent years and may be in prison in China, an examination of open-source evidence suggests that his network continues to operate.

This month’s newsletter features an analysis of recent trends in U.S. and EU sanctions against Iran. Whereas in the past these sanctions have focused heavily on Iran’s nuclear and ballistic missile programs, over the past two years the focus has shifted dramatically toward targeting human rights violators and drone-related entities.