December 05, 2025
The Russia-Iran Partnership: A Geopolitical Balancing Act
It has been almost a year since Russia and Iran signed their comprehensive strategic partnership. That deal established a 20-year partnership between the two countries covering the full spectrum of their relationship from military to economic to cyber ties. Though the two countries have cooperated deeply, from mass production of military drones to smuggling millions of barrels of oil, Russia did not come to Iran's aid when Iran endured 12 days of punishing war at the hands of Israel and the United States. Despite this, cooperation between Russia and Iran has continued. In November, Financial Times reported that Iranian scientists and nuclear experts made a second covert visit to Russia last year in what the United States claims has been a push to obtain sensitive technologies with potential nuclear weapon applications. Cooperation between the two remains a significant challenge for the United States and its allies.
To take stock of where Russia-Iran relations are and where they may go, the Center for a New American Security is very pleased to welcome Hanna Notte and Nicole Grajewski to this week’s episode of Brussels Sprouts.
Hanna Notte is the director for Eurasia at the James Martin Center for Non-Proliferation Studies and a senior associate at the Center for Strategic and International Studies.
Nicole Grajewski is a fellow at the Carnegie Endowment for International Peace, an associate researcher at Harvard’s Belfer Center, and the author of Russia and Iran: Partners in Defiance from Syria to Ukraine.
More from CNAS
-
Defense / Transatlantic Security
Ukraine’s Catch-22 MomentThis article was originally published in the Financial Times. In Joseph Heller’s wartime classic, Catch-22, the protagonist Yossarian seeks out the US army surgeon Doc Daneeka...
By Franz-Stefan Gady
-
Transatlantic Security / Middle East Security / Energy, Economics & Security
Sanctions Aren’t Enough to Shut Down the Moscow-Tehran Black Market for WarThe geographic scope and extent of Iranian-Russian cooperation highlights the failure of traditional sanctions to prevent Moscow and Tehran from seeking key components like ch...
By Delaney Soliday
-
What’s Driving President Trump’s New Confidence in Ukraine’s War Effort
President Trump dramatically declared on social media that he now believes that Ukraine can reclaim all its land from Russia, which he described as a paper tiger. From the Ova...
By Richard Fontaine
-
‘The U.S. Has Got to Get Involved’: Townsend on NATO Boosting Polish Air Defences
Jim Townsend, adjunct senior fellow at the Center for a New American Security, discusses what actions NATO countries need to take amidst Russia’s incursions of NATO airspace.W...
By Jim Townsend