On Jan. 17, 2025, Iranian President Masoud Pezeshkian and Russian President Vladimir Putin signed a strategic partnership treaty in Moscow that is intended to guide relations between the two countries for the next 20 years. The agreement had been years in the making, and Iranian officials said the final draft emerged only after 20 to 30 rounds of talks spread across four or five years.

The treaty is broad in scope. According to the source report, it contains 47 articles covering technology, information and cybersecurity, peaceful nuclear cooperation, counterterrorism, regional coordination, environmental issues, the Caspian Sea, and work against money laundering and organized crime. It also sets out an agenda for defense and military cooperation, including training and joint initiatives, although those provisions will require separate contracts and follow-up agreements before they can be put into practice.

The pact also includes political clauses with obvious symbolism. Both sides commit not to support aggressors against one another and not to let their territory be used as a base for hostile acts. The treaty emphasizes territorial integrity, a point of particular relevance to Iran because of the dispute over the three Gulf islands claimed by the United Arab Emirates. At the same time, the text does not recognize Crimea or other disputed territories seized by Russia, and it includes a pledge to oppose unlawful extraterritorial sanctions, including U.S. secondary sanctions, while backing each other in international forums.

Those commitments come with caveats. The deal still needs approval from Iran’s parliament, and an Iranian analyst warned that the sanctions clause could become complicated if UN Security Council measures are reimposed through the JCPOA snapback mechanism before that option expires later in the year. The treaty is also being signed in the shadow of tensions over Syria, where a leaked recording of an Iranian commander criticized Russia’s wartime behavior. Even so, a government source said those differences would not derail the relationship, and a former Iranian ambassador said the pact was meant as a trust-building step ahead of Donald Trump’s return to power.

The treaty reflects a convergence of interests under sanctions pressure. Iran and Russia both face Western restrictions that hit their energy sectors, and both are trying to deepen non-Western partnerships while expanding trade, investment and energy ties. For Tehran, the agreement is also a signal that it does not intend to abandon Moscow even if it seeks some kind of de-escalation with the West. For Russia, it formalizes a relationship that is already strategically useful. The long-term value of the treaty will depend on how much of its language survives parliamentary scrutiny and how much of it can be converted into real projects rather than broad declarations.

The treaty’s real test will be in implementation. Parliamentary approval in Tehran could expose criticism over the breadth of the agreement, especially because public unease over Russia runs deep and the deal covers everything from trade and sanctions to military cooperation and nuclear energy. Even so, both governments appear to view the pact as a hedge against Western pressure. For Iran, it is a way to keep Moscow close while negotiations with Europe remain uncertain. For Russia, it is another formal layer in a relationship built on shared isolation.