Most people wouldn’t be able to locate Sirik on a map. It is located in the southern Hormozgan Province of Iran, a section of coastline that faces Oman and the United Arab Emirates across the Gulf. The area has dry air and warm water, making it seem forgotten until all of a sudden it isn’t. A $25 billion deal between Tehran and Moscow is currently centered around that peaceful geography, which has American officials observing with a familiar, restless uneasiness and European diplomats quietly alarmed.
Four new nuclear power reactors will be built on a 500-hectare site in Sirik as part of the agreement, which was made public by Iranian state media on Friday. It is the work of Rosatom, the state nuclear agency of Russia. For a nation that already understands what it’s like to be without power during months of high demand, the reactors, which are Generation III units, are anticipated to produce five gigawatts of electricity. Iran presently operates a single, 1 GW nuclear plant in Bushehr that was also constructed by Russia. It would be completely dwarfed by what’s coming to Sirik.
This agreement doesn’t seem to have come about in a vacuum. It happened the same week that the UN Security Council was getting ready to vote on a resolution supported by China and Russia that called for a minimum six-month postponement of the reimposition of international sanctions against Iran via the so-called “snapback mechanism.” By accusing Tehran of breaking its obligations under the 2015 nuclear deal, France, Germany, and the United Kingdom had already triggered that mechanism in late August. To put it mildly, the timing of Moscow’s reactor announcement seems purposeful.
Iran and Russia have long had close ties, and in recent years, those ties have only gotten stronger. Without hesitation, Moscow denounced the Israeli and American attacks on Iranian nuclear facilities in June. Iran maintains that the strikes were an act of unprovoked aggression. Iran has continuously refuted Israel’s accusation that it was on the verge of obtaining a nuclear weapon, despite Israel’s lack of public evidence. Days before the reactor deal was announced, President Masoud Pezeshkian reiterated what Iranian officials had been saying for years: Tehran will “never seek to build a nuclear bomb.” The world’s belief in that is still up for debate.

The collapsing legal architecture surrounding this moment is what gives it a unique feel. In a joint letter to the UN secretary-general, Iran, Russia, and China declared that the 2015 nuclear agreement, officially known as the JCPOA, had been effectively terminated. They claimed that the ten-year window set by Resolution 2231 had expired on October 18, 2025. The European parties were criticized in the letter for what it described as a “legally and procedurally flawed” attempt to initiate snapback measures, implying that nations that renounced their own obligations under the agreement lacked the legal standing to invoke its penalties. It’s a compelling legal argument. Additionally, the E3 will not quietly accept it.
It’s difficult to ignore how blatantly this situation exposes the weaknesses in what was once a cohesive international strategy toward Iran. Years ago, the Americans left the JCPOA. The Europeans made an effort to keep things together. China and Russia were never particularly interested in using it as a pressure tactic against Tehran. Three of the world’s major powers are now declaring the deal dead, but the West maintains that it still has teeth. From the outside, it appears as though everyone is debating the rules of a game that has already ended.
It’s really hard to tell what Sirik will look like in ten years. It’s still unclear whether those four reactors will be completed on time, whether sanctions will alter the project’s economics, and whether a future diplomatic opening will alter Tehran’s stance. However, the agreement itself shows that Russia is not abandoning Iran. If anything, it’s getting closer.
