Russia-Ukraine: What to know as Putin takes military action

Russian President Vladimir Putin has announced a military operation in Ukraine, and he is warning other countries that any attempt to interfere with the Russian action would lead to “consequences they have never seen.”

Russia sanctions: A look at Biden administration's toughest penalties

The East-West faceoff over Ukraine has escalated dramatically, with Russian lawmakers authorizing President Vladimir Putin to use military force outside his country and President Joe Biden and European leaders responding by slapping sanctions on Russian oligarchs and banks.