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

The presidents of Russia and Iran have signed a broad cooperation pact to deepen their partnership amid stinging Western sanctions

Russian President Vladimir Putin and his Iranian counterpart Masoud Pezeshkian deepened military ties between their countries on Friday by signing a 20-year strategic partnership that is likely to worry the West.

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 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

Russian and Iranian officials say the "comprehensive strategic partnership treaty" covers all areas -— from trade and military cooperation to science, education and culture.

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.