Russia has started providing Iran with upgraded munitions, satellite imagery and targeting data used against American forces in the Middle East, according to intelligence assessments made public this month.

The assessments describe a broader military partnership that includes a covert effort to help Tehran develop supersonic and hypersonic cruise missiles. The cooperation connects Russia’s war in Ukraine with Iran’s war against the United States and Israel.

Military ties between Tehran and Moscow have developed since the 1990s. The partnership accelerated sharply after 2022, when Iran began supplying Russia with Shahed attack drones for use in Ukraine.

The Kremlin later negotiated a license to manufacture the Iranian designed drones inside Russia. Russian engineers rapidly learned to replace and frequently upgrade most of the weapons’ components with parts obtained locally and from China.

Iran has waged its own war against the United States and Israel since the spring. Russia’s upgraded technology is now flowing back to Tehran, according to the Institute for the Study of War.

“If confirmed, this would represent a complete technological feedback loop in which Iranian‑designed drones supplied to Russia were enhanced through extensive wartime use before being returned to Iran in a significantly more capable configuration,” ISW analysts found.

The exchange represents a move toward a more interdependent partnership that is already endangering American forces across the Middle East and beyond, according to American and Ukrainian officials. Ukrainian President Volodymyr Zelenskyy said he provided evidence of the alliance to the White House in March.

“There’s definitely some action there,” Gen. Dan Caine, chairman of the Joint Chiefs, told a Senate hearing in April when questioned about whether Russia was actively assisting Iran’s war effort against American forces.

Iran sent its first Shahed‑136 and Shahed‑131 drones to Russia in mid‑August 2022, six months after the full scale invasion of Ukraine began, according to the Center for Strategic and International Studies.

About two months later, a Russian military industry delegation traveled to Iran to complete a $1.75 billion agreement authorizing drone production at the Alabuga Special Economic Zone in Tatarstan. Production began with Iranian supplied kits before shifting toward Russian and Chinese components.

During the following four years, Russian engineers transformed the imported design into a seemingly different weapon. They replaced the original Iranian engine with Chinese turbojets, installed mesh network radios and air to air missiles, and introduced new jet powered airframes for the Geran-4 and Geran-5.

Those changes left the newer drones bearing little resemblance to the original propeller driven design. CSIS described the Russian adaptation as a dramatic wartime evolution of the Iranian weapon.

“The country that has most thoroughly mastered the Shahed is not the one that built it,” CSIS researchers found. “Russia has used its license‑built variant, designated the ‘Geran,’ as a base platform for unprecedented wartime iteration.”

Russian missile specialists have also helped Iran develop ramjet propulsion systems for supersonic and hypersonic cruise missiles since 2023. The assistance has operated through a covert program called C430L, according to a Financial Times investigation published Sept. 1.

The two governments formalized their partnership in 2025 by signing a 20 year strategic treaty covering joint military exercises, intelligence sharing and defense industry cooperation, according to Reuters. ISW warned that targeting intelligence provided by Russia could make future Iranian drone attacks substantially more sophisticated.

Satellite imagery from early September showed construction of at least ten new facilities at Alabuga, according to ISW. Ukrainian intelligence said Russia planned to manufacture thousands of additional Geran drones and decoy munitions during September alone.

Jet powered models were on track to account for roughly 80% of all drone attacks by November, according to RBC-Ukraine. Those production numbers would allow Russia to keep supplying its war in Ukraine and Iran’s long range campaign against American aircraft carriers and warships for several more months.

“Iran’s development and operationalization of this technology would likely improve its ability to threaten US land and naval assets in the region,” ISW concluded. The institute warned of threats to American bases, command centers, logistics hubs, ammunition depots and naval infrastructure.

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