Iran Update, September 18, 2025 (Institute for the Study of War)

Snapback Sanctions on Iran: French President Emmanuel Macron stated on September 18 that UN snapback sanctions on Iran are a “done deal” and will be reimposed at the end of September. Macron told Israeli media that Iran has failed to make serious commitments. The UN Security Council will reimpose snapback sanctions on Iran when the 30-day process concludes on September 27 unless Iran meets the criteria laid out under the Joint Comprehensive Plan of Action.
Iran-Russia Energy Cooperation: Senior Iranian officials, including Iranian President Masoud Pezeshkian and Oil Minister Mohsen Paknejad, met with Russian Energy Minister Sergey Tsivilyov in Tehran on September 18 to discuss energy cooperation, likely in an effort to address energy shortages in Iran. Iranian officials may be concerned about potential unrest as a result of ongoing chronic energy shortages.
Iranian Military Cooperation with US Adversaries: Iran views Russia and China as critical to its efforts to rebuild its military and prepare for future conflict. Iranian Armed Forces General Staff-controlled outlet Defa Press published an article on September 15 discussing how Iran will benefit from an upcoming BRICS naval exercise. The Iranian article asserted that the exercise would help Iran develop “modern tactics” across multiple domains, test domestically produced weapons, and share weapons technology and intelligence with other exercise participants.
Iran-Russia Defense Cooperation: The Iranian military establishment has discussed acquiring Russian-made Krasukha-4 electronic warfare (EW) systems as part of the Iranian military reconstitution effort. Iran is likely hoping to acquire the Krasukha-4 and integrate these operational lessons in future defensive operations against Israel.

Iran Update, September 18, 2025 | ISW

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