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

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.

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.

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,

The agreement is focused more on trade than military issues, but it will bring two countries with a shared desire to challenge the West closer together.

The Kremlin says Russian President Vladimir Putin will host his Iranian counterpart President Masoud Pezeshkian this week for the signing of a broad partnership pact between Moscow and Tehran.

Iranian President Masoud Pezeshkian has arrived in Russia for the signing of a broad cooperation treaty as his country grapples with growing economic problems and other challenges

The two countries sign a 20-year treaty covering areas ranging from defence and technology to energy and trade.

Russian President Vladimir Putin began talks with his Iranian counterpart, Masoud Pezeshkian, at a summit on Friday to sign a new pact, as the two countries brace for the return of US President-elect Donald Trump to the White House.

Russian President Vladimir Putin and Iranian President Masoud Pezeshkian met in Moscow on Friday to sign a broad 20-year treaty. CBS News national security contributor Sam Vinograd breaks down how it could affect U.