Nicole Grajewski is a Fellow in the Nuclear Policy Program at the Carnegie Endowment for International Peace and an Associate with the Project on Managing the Atom at the Harvard Kennedy School. She is the author of Russia and Iran: Partners in Defiance From Syria to Ukraine.

Just three days before US President-elect Donald Trump returns to the White House, Russia and Iran have finally signed a “comprehensive partnership agreement,” a deal that had been in the works for months.

Russia was part of the 2015 deal between Iran and six nuclear powers offering sanctions relief for Tehran in exchange for curbing its atomic program and opening it to broader international scrutiny. Moscow offered political support to Iran when the U.S ...

For Moscow, Iranian President Masoud Pezeshkian's visit to Russia on Jan. 17 is a diplomatic victory. The trip's centerpiece will be the finalization of a long-heralded partnership deal between Russia and Iran,

While Moscow and Tehran have shared warmer relations for decades, a revival of the nations’ allyship occurred when the former invaded Kyiv.

Russia signed a strategic partnership treaty with Iran on Friday that follows similar pacts with China and North Korea. All three countries are adversaries of the United States, and Russia has used its ties with them to help blunt the impact of Western sanctions and boost its war effort in Ukraine.

Iran has long sought an alliance to protect it in the face of potential conflict with adversaries, but the text of the agreement falls short of obligating either party to provide military support in the event of foreign aggression.

Russian President Vladimir Putin and his Iranian counterpart, Masoud Pezeshkian, signed a broad cooperation pact Friday as their countries deepened their partnership in the face of stinging Western sanctions.

Russia was part of the 2015 deal between Iran and six nuclear powers offering sanctions relief for Tehran in exchange for curbing its atomic program and opening it to broader international scrutiny.

But they warn that, if that fails, Iran is on a collision course with the west. European powers that opposed Trump’s maximum pressure during his first term have become more angry with Iran’s behaviour, including the continued expansion of its nuclear activity, its arms sales to Russia and its alleged targeting of citizens in the west.

According to Abbas Araghchi, the Iranian authorities are ready to listen to US President Donald Trump's proposals