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.

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

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

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.

Relations between Iran and Russia continue to warm amidst an increasingly unstable geopolitical climate. The two allies signed a cooperative agreement this week, signaling Tehran and Moscow will lean on each other more as they similarly face a slew of Western sanctions.