US President Joe Biden and French President Emmanuel Macron reviewed during a call on Wednesday, February 2, the coordination of diplomatic efforts and plans to impose economic costs on Moscow should it "invade" Ukraine, the White House said.

“President Biden and President Macron agreed their teams will stay in close touch, including in consultation with NATO Allies and EU partners, on our coordinated and comprehensive approach to managing these issues,” it said in a readout.

Over the next 24 hours, Macron is scheduled to speak with Russian President Vladimir Putin about the Ukraine problem.

Macron will meet with Russian President Vladimir Putin on Thursday at 17:00 GMT, according to the French presidency. Macron said he couldn't rule out heading to Russia depending on "progress in our negotiations in the coming hours."

France has also offered to send troops to Romania under NATO command to assist protect Eastern Europe from the crisis' possible spillover.

Macron to meet Putin 

"A face-to-face meeting between Russian President Vladimir Putin and his French colleague Emmanuel Macron may take place soon," Russian Presidential Spokesperson Dmitry Peskov said earlier.

Russian President Vladimir Putin and French President Emmanuel Macron spoke on the phone about the situation in Ukraine and problems linked to giving long-term security guarantees to Russia.

It's worth noting that a US administration official confirmed that the US plans to deploy military personnel to Eastern Europe to support NATO forces, while Estonian Prime Minister Kaia Kallas confirmed that "Britain will double the number of its forces in Estonia to contain the Russian threat."