Moscow, June 18, 2025 — As Iran faces its most serious internal threat in decades amid an escalating military campaign led by Israel and backed by U.S. President Donald Trump, Russia finds itself caught in a precarious geopolitical balancing act. Despite a years-long alliance with Tehran, the Kremlin has so far issued only muted condemnations and shown little willingness to risk confrontation with the West on Iran’s behalf—signaling a deepening anxiety about the unraveling of one of its most critical strategic partnerships.
Russian and Iranian officials who gathered this week in Moscow for a conference titled “Russian-Iranian cooperation in a changing world” found the title more apt than ever. Seated in the President Hotel near the Kremlin, the delegation faced the grim reality that Tehran’s regime, long a pillar of Moscow’s Middle East strategy, is now under existential threat. As Trump demands Iran’s “unconditional surrender,” Moscow is quietly acknowledging its limited leverage while calculating how to avoid fallout that could affect its own foreign policy objectives—especially its war in Ukraine.
“Moscow clearly doesn’t want conflict with Trump and is doing everything it can to push the U.S. back toward diplomacy,” said a Russian official with ties to the foreign ministry. “But its main priority remains preserving the fragile improvement in relations with the Trump administration and avoiding anything that might derail that—especially regarding Ukraine.”
Analysts say Russia’s hesitation to fully back Tehran reveals a hard political calculus. While Iran was instrumental to Moscow in the early stages of its 2022 invasion of Ukraine—providing combat drones and technical assistance—Russia’s dependence has diminished. A domestic drone production facility now operates in the Ural Mountains, reducing Moscow’s reliance on Tehran’s military support.
Still, the potential collapse of the Iranian regime poses a serious strategic and reputational risk for the Kremlin. “If the current Iranian regime falls, it would be both a strategic and reputational blow for Russia—a bigger loss than the fall of Damascus,” said the same foreign ministry source, referring to Syria’s Bashar al-Assad, whose diminishing grip on power ended years of Russian investment in the region.
Despite the signing of a “comprehensive strategic partnership treaty” between Russian President Vladimir Putin and Iranian President Masoud Pezeshkian earlier this year, the relationship has remained transactional and limited. Notably, the treaty omitted any mutual defense clause, and Russia has repeatedly failed to deliver promised weapons to Tehran, including air defense systems and fighter jets.
That dynamic underscores a fragile partnership built more on shared opposition to the West than deep historical or cultural ties. The relationship, once fueled by common experiences under Western sanctions, now stands exposed to collapse under the weight of regional instability and Moscow’s shifting priorities.
Russia has also intensified its engagement with other Middle Eastern powers, including Saudi Arabia, further straining the Iranian alliance. While some in Moscow have tried to spin the situation positively—pointing to rising oil prices as a temporary economic gain and noting Trump’s diminished focus on Ukraine—analysts warn the Kremlin’s longer-term geopolitical position is at serious risk.
“If Iran’s regime collapses, Russia stands to lose not only an ally but also billions in investments across energy and infrastructure projects,” said Hanna Notte, a Berlin-based expert on Russian foreign policy. “A Middle East dominated by U.S.-aligned powers would be a heavy blow to Russia’s global ambitions.”
The potential sidelining of Iran in regional affairs could also weaken Russia’s influence in international forums and alliances that have been central to its post-Ukraine diplomatic pivot. Iran’s collapse would leave Moscow without a major partner in counterbalancing Western dominance, further isolating it on the global stage.
Perhaps most troubling for the Kremlin is the optics of impotence. While Moscow has gained from the distraction the Iran conflict has caused in Western capitals, including Trump skipping a key G7 meeting with Ukrainian President Volodymyr Zelenskyy, the lack of a strong Russian response underscores its limited ability to protect its interests beyond Ukraine.
“Moscow may gain short-term breathing room in Ukraine,” said Ruslan Pukhov, head of a Moscow-based defense think tank, “but it’s losing credibility as a reliable partner—and that may cost it far more in the long run.”