level of respect for international order that was not lost on the u.s. ambassador to the united nations. >> president putin has ordered that last step at the exact time as we are gathered in the council seeking peace putin delivered a message of war in total disdain for the responsibility of this council. this is a grave emergency. >> in a phone call with ukraine's president, president biden promised russia will be held accountable for what he called an unprovoked and unjustified attack. this afternoon president biden will deliver remarks to the nation but the whole world will be listening. >> we do have cnn reporters covering the story from every angle from moscow, to lviv to kyiv. first let's go to sam kiley who is live on the ground in